diff --git a/src/AddressBook/AddressBookProtos.cs b/src/AddressBook/AddressBookProtos.cs
index 7f3504a6e5..4d391f0fe1 100644
--- a/src/AddressBook/AddressBookProtos.cs
+++ b/src/AddressBook/AddressBookProtos.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.Examples.AddressBook {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class AddressBookProtos {
   
     #region Extension registration
@@ -66,7 +66,7 @@ namespace Google.ProtocolBuffers.Examples.AddressBook {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class Person : pb::GeneratedMessage<Person, Person.Builder> {
     private static readonly Person defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _personFieldNames = new string[] { "email", "id", "name", "phone" };
@@ -94,10 +94,10 @@ namespace Google.ProtocolBuffers.Examples.AddressBook {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public enum PhoneType {
         MOBILE = 0,
         HOME = 1,
@@ -106,7 +106,7 @@ namespace Google.ProtocolBuffers.Examples.AddressBook {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class PhoneNumber : pb::GeneratedMessage<PhoneNumber, PhoneNumber.Builder> {
         private static readonly PhoneNumber defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _phoneNumberFieldNames = new string[] { "number", "type" };
@@ -228,7 +228,7 @@ namespace Google.ProtocolBuffers.Examples.AddressBook {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<PhoneNumber, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -532,7 +532,7 @@ namespace Google.ProtocolBuffers.Examples.AddressBook {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<Person, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -764,7 +764,7 @@ namespace Google.ProtocolBuffers.Examples.AddressBook {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class AddressBook : pb::GeneratedMessage<AddressBook, AddressBook.Builder> {
     private static readonly AddressBook defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _addressBookFieldNames = new string[] { "person" };
@@ -874,7 +874,7 @@ namespace Google.ProtocolBuffers.Examples.AddressBook {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<AddressBook, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/AddressBook/Properties/AssemblyInfo.cs b/src/AddressBook/Properties/AssemblyInfo.cs
index 34b9e47ffe..614e1b4839 100644
--- a/src/AddressBook/Properties/AssemblyInfo.cs
+++ b/src/AddressBook/Properties/AssemblyInfo.cs
@@ -33,7 +33,7 @@ using System.Runtime.InteropServices;
 //
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
-// [assembly: AssemblyVersion("2.3.0.369")]
+// [assembly: AssemblyVersion("2.3.0.277")]
 
-[assembly: AssemblyVersion("2.3.0.369")]
-[assembly: AssemblyFileVersion("2.3.0.369")]
\ No newline at end of file
+[assembly: AssemblyVersion("2.3.0.277")]
+[assembly: AssemblyFileVersion("2.3.0.277")]
\ No newline at end of file
diff --git a/src/ProtoBench/Properties/AssemblyInfo.cs b/src/ProtoBench/Properties/AssemblyInfo.cs
index 498f8dcfb9..a5779209df 100644
--- a/src/ProtoBench/Properties/AssemblyInfo.cs
+++ b/src/ProtoBench/Properties/AssemblyInfo.cs
@@ -36,7 +36,7 @@ using System.Runtime.InteropServices;
 //
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
-// [assembly: AssemblyVersion("2.3.0.369")]
+// [assembly: AssemblyVersion("2.3.0.277")]
 
-[assembly: AssemblyVersion("2.3.0.369")]
-[assembly: AssemblyFileVersion("2.3.0.369")]
\ No newline at end of file
+[assembly: AssemblyVersion("2.3.0.277")]
+[assembly: AssemblyFileVersion("2.3.0.277")]
\ No newline at end of file
diff --git a/src/ProtoDump/Properties/AssemblyInfo.cs b/src/ProtoDump/Properties/AssemblyInfo.cs
index e71f55407b..816d6f98c1 100644
--- a/src/ProtoDump/Properties/AssemblyInfo.cs
+++ b/src/ProtoDump/Properties/AssemblyInfo.cs
@@ -34,7 +34,7 @@ using System.Runtime.InteropServices;
 //
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
-// [assembly: AssemblyVersion("2.3.0.369")]
+// [assembly: AssemblyVersion("2.3.0.277")]
 
-[assembly: AssemblyVersion("2.3.0.369")]
-[assembly: AssemblyFileVersion("2.3.0.369")]
\ No newline at end of file
+[assembly: AssemblyVersion("2.3.0.277")]
+[assembly: AssemblyFileVersion("2.3.0.277")]
\ No newline at end of file
diff --git a/src/ProtoGen.Test/Properties/AssemblyInfo.cs b/src/ProtoGen.Test/Properties/AssemblyInfo.cs
index 98ab392a4b..8a64bf4bbc 100644
--- a/src/ProtoGen.Test/Properties/AssemblyInfo.cs
+++ b/src/ProtoGen.Test/Properties/AssemblyInfo.cs
@@ -34,7 +34,7 @@ using System.Runtime.InteropServices;
 //
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
-// [assembly: AssemblyVersion("2.3.0.369")]
+// [assembly: AssemblyVersion("2.3.0.277")]
 
-[assembly: AssemblyVersion("2.3.0.369")]
-[assembly: AssemblyFileVersion("2.3.0.369")]
\ No newline at end of file
+[assembly: AssemblyVersion("2.3.0.277")]
+[assembly: AssemblyFileVersion("2.3.0.277")]
\ No newline at end of file
diff --git a/src/ProtoGen/Properties/AssemblyInfo.cs b/src/ProtoGen/Properties/AssemblyInfo.cs
index 2e2fdae92b..1d8cc31290 100644
--- a/src/ProtoGen/Properties/AssemblyInfo.cs
+++ b/src/ProtoGen/Properties/AssemblyInfo.cs
@@ -33,7 +33,7 @@ using System.Runtime.InteropServices;
 //
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
-// [assembly: AssemblyVersion("2.3.0.369")]
+// [assembly: AssemblyVersion("2.3.0.277")]
 
-[assembly: AssemblyVersion("2.3.0.369")]
-[assembly: AssemblyFileVersion("2.3.0.369")]
\ No newline at end of file
+[assembly: AssemblyVersion("2.3.0.277")]
+[assembly: AssemblyFileVersion("2.3.0.277")]
\ No newline at end of file
diff --git a/src/ProtoMunge/Properties/AssemblyInfo.cs b/src/ProtoMunge/Properties/AssemblyInfo.cs
index eaadf7afcc..5e62c84872 100644
--- a/src/ProtoMunge/Properties/AssemblyInfo.cs
+++ b/src/ProtoMunge/Properties/AssemblyInfo.cs
@@ -34,7 +34,7 @@ using System.Runtime.InteropServices;
 //
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
-// [assembly: AssemblyVersion("2.3.0.369")]
+// [assembly: AssemblyVersion("2.3.0.277")]
 
-[assembly: AssemblyVersion("2.3.0.369")]
-[assembly: AssemblyFileVersion("2.3.0.369")]
\ No newline at end of file
+[assembly: AssemblyVersion("2.3.0.277")]
+[assembly: AssemblyFileVersion("2.3.0.277")]
\ No newline at end of file
diff --git a/src/ProtocolBuffers.Serialization/Properties/AssemblyInfo.cs b/src/ProtocolBuffers.Serialization/Properties/AssemblyInfo.cs
index b6581aa4c5..fdae52b878 100644
--- a/src/ProtocolBuffers.Serialization/Properties/AssemblyInfo.cs
+++ b/src/ProtocolBuffers.Serialization/Properties/AssemblyInfo.cs
@@ -65,12 +65,12 @@ using System.Runtime.CompilerServices;
 //
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
-// [assembly: AssemblyVersion("2.3.0.369")]
+// [assembly: AssemblyVersion("2.3.0.277")]
 
-[assembly: AssemblyVersion("2.3.0.369")]
+[assembly: AssemblyVersion("2.3.0.277")]
 #if !COMPACT_FRAMEWORK_35
 
-[assembly: AssemblyFileVersion("2.3.0.369")]
+[assembly: AssemblyFileVersion("2.3.0.277")]
 #endif
 
 [assembly: CLSCompliant(true)]
\ No newline at end of file
diff --git a/src/ProtocolBuffers.Test/Properties/AssemblyInfo.cs b/src/ProtocolBuffers.Test/Properties/AssemblyInfo.cs
index a324c105e9..5aa14a93a1 100644
--- a/src/ProtocolBuffers.Test/Properties/AssemblyInfo.cs
+++ b/src/ProtocolBuffers.Test/Properties/AssemblyInfo.cs
@@ -35,10 +35,10 @@ using System.Runtime.InteropServices;
 //
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
-// [assembly: AssemblyVersion("2.3.0.369")]
+// [assembly: AssemblyVersion("2.3.0.277")]
 
-[assembly: AssemblyVersion("2.3.0.369")]
-[assembly: AssemblyFileVersion("2.3.0.369")]
+[assembly: AssemblyVersion("2.3.0.277")]
+[assembly: AssemblyFileVersion("2.3.0.277")]
 // We don't really need CLSCompliance, but if the assembly builds with no warnings,
 // that means the generator is okay.
 
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestCSharpOptionsProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestCSharpOptionsProtoFile.cs
index 076de4ffbd..ff726d65de 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestCSharpOptionsProtoFile.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestCSharpOptionsProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestCSharpOptionsProtoFile {
   
     #region Extension registration
@@ -58,7 +58,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class OptionsMessage : pb::GeneratedMessage<OptionsMessage, OptionsMessage.Builder> {
     private static readonly OptionsMessage defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _optionsMessageFieldNames = new string[] { "customized", "normal", "options_message" };
@@ -195,7 +195,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<OptionsMessage, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestCustomOptionsProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestCustomOptionsProtoFile.cs
index 427b1ade85..0b1be422a6 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestCustomOptionsProtoFile.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestCustomOptionsProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestCustomOptionsProtoFile {
   
     #region Extension registration
@@ -387,7 +387,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   }
   #region Enums
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public enum MethodOpt1 {
     METHODOPT1_VAL1 = 1,
     METHODOPT1_VAL2 = 2,
@@ -398,7 +398,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestMessageWithCustomOptions : pb::GeneratedMessage<TestMessageWithCustomOptions, TestMessageWithCustomOptions.Builder> {
     private static readonly TestMessageWithCustomOptions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testMessageWithCustomOptionsFieldNames = new string[] { "field1" };
@@ -426,10 +426,10 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public enum AnEnum {
         ANENUM_VAL1 = 1,
         ANENUM_VAL2 = 2,
@@ -518,7 +518,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestMessageWithCustomOptions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -653,7 +653,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class CustomOptionFooRequest : pb::GeneratedMessage<CustomOptionFooRequest, CustomOptionFooRequest.Builder> {
     private static readonly CustomOptionFooRequest defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _customOptionFooRequestFieldNames = new string[] {  };
@@ -742,7 +742,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<CustomOptionFooRequest, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -851,7 +851,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class CustomOptionFooResponse : pb::GeneratedMessage<CustomOptionFooResponse, CustomOptionFooResponse.Builder> {
     private static readonly CustomOptionFooResponse defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _customOptionFooResponseFieldNames = new string[] {  };
@@ -940,7 +940,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<CustomOptionFooResponse, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -1049,7 +1049,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class DummyMessageContainingEnum : pb::GeneratedMessage<DummyMessageContainingEnum, DummyMessageContainingEnum.Builder> {
     private static readonly DummyMessageContainingEnum defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _dummyMessageContainingEnumFieldNames = new string[] {  };
@@ -1077,10 +1077,10 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public enum TestEnumType {
         TEST_OPTION_ENUM_TYPE1 = 22,
         TEST_OPTION_ENUM_TYPE2 = -23,
@@ -1153,7 +1153,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<DummyMessageContainingEnum, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -1262,7 +1262,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class DummyMessageInvalidAsOptionType : pb::GeneratedMessage<DummyMessageInvalidAsOptionType, DummyMessageInvalidAsOptionType.Builder> {
     private static readonly DummyMessageInvalidAsOptionType defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _dummyMessageInvalidAsOptionTypeFieldNames = new string[] {  };
@@ -1351,7 +1351,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<DummyMessageInvalidAsOptionType, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -1460,7 +1460,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class CustomOptionMinIntegerValues : pb::GeneratedMessage<CustomOptionMinIntegerValues, CustomOptionMinIntegerValues.Builder> {
     private static readonly CustomOptionMinIntegerValues defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _customOptionMinIntegerValuesFieldNames = new string[] {  };
@@ -1549,7 +1549,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<CustomOptionMinIntegerValues, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -1658,7 +1658,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class CustomOptionMaxIntegerValues : pb::GeneratedMessage<CustomOptionMaxIntegerValues, CustomOptionMaxIntegerValues.Builder> {
     private static readonly CustomOptionMaxIntegerValues defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _customOptionMaxIntegerValuesFieldNames = new string[] {  };
@@ -1747,7 +1747,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<CustomOptionMaxIntegerValues, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -1856,7 +1856,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class CustomOptionOtherValues : pb::GeneratedMessage<CustomOptionOtherValues, CustomOptionOtherValues.Builder> {
     private static readonly CustomOptionOtherValues defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _customOptionOtherValuesFieldNames = new string[] {  };
@@ -1945,7 +1945,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<CustomOptionOtherValues, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -2054,7 +2054,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class SettingRealsFromPositiveInts : pb::GeneratedMessage<SettingRealsFromPositiveInts, SettingRealsFromPositiveInts.Builder> {
     private static readonly SettingRealsFromPositiveInts defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _settingRealsFromPositiveIntsFieldNames = new string[] {  };
@@ -2143,7 +2143,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<SettingRealsFromPositiveInts, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -2252,7 +2252,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class SettingRealsFromNegativeInts : pb::GeneratedMessage<SettingRealsFromNegativeInts, SettingRealsFromNegativeInts.Builder> {
     private static readonly SettingRealsFromNegativeInts defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _settingRealsFromNegativeIntsFieldNames = new string[] {  };
@@ -2341,7 +2341,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<SettingRealsFromNegativeInts, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -2450,7 +2450,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class ComplexOptionType1 : pb::ExtendableMessage<ComplexOptionType1, ComplexOptionType1.Builder> {
     private static readonly ComplexOptionType1 defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _complexOptionType1FieldNames = new string[] { "foo", "foo2", "foo3" };
@@ -2591,7 +2591,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<ComplexOptionType1, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -2776,7 +2776,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class ComplexOptionType2 : pb::ExtendableMessage<ComplexOptionType2, ComplexOptionType2.Builder> {
     private static readonly ComplexOptionType2 defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _complexOptionType2FieldNames = new string[] { "bar", "baz", "fred" };
@@ -2804,11 +2804,11 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class ComplexOptionType4 : pb::GeneratedMessage<ComplexOptionType4, ComplexOptionType4.Builder> {
         private static readonly ComplexOptionType4 defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _complexOptionType4FieldNames = new string[] { "waldo" };
@@ -2915,7 +2915,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<ComplexOptionType4, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -3169,7 +3169,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<ComplexOptionType2, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -3400,7 +3400,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class ComplexOptionType3 : pb::GeneratedMessage<ComplexOptionType3, ComplexOptionType3.Builder> {
     private static readonly ComplexOptionType3 defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _complexOptionType3FieldNames = new string[] { "complexoptiontype5", "qux" };
@@ -3428,11 +3428,11 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class ComplexOptionType5 : pb::GeneratedMessage<ComplexOptionType5, ComplexOptionType5.Builder> {
         private static readonly ComplexOptionType5 defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _complexOptionType5FieldNames = new string[] { "plugh" };
@@ -3537,7 +3537,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<ComplexOptionType5, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -3768,7 +3768,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<ComplexOptionType3, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -3950,7 +3950,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class ComplexOpt6 : pb::GeneratedMessage<ComplexOpt6, ComplexOpt6.Builder> {
     private static readonly ComplexOpt6 defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _complexOpt6FieldNames = new string[] { "xyzzy" };
@@ -4055,7 +4055,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<ComplexOpt6, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -4189,7 +4189,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class VariousComplexOptions : pb::GeneratedMessage<VariousComplexOptions, VariousComplexOptions.Builder> {
     private static readonly VariousComplexOptions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _variousComplexOptionsFieldNames = new string[] {  };
@@ -4278,7 +4278,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<VariousComplexOptions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestEmbedOptimizeForProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestEmbedOptimizeForProtoFile.cs
index 53f5a2b573..09ecdd63d4 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestEmbedOptimizeForProtoFile.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestEmbedOptimizeForProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestEmbedOptimizeForProtoFile {
   
     #region Extension registration
@@ -62,7 +62,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestEmbedOptimizedForSize : pb::GeneratedMessage<TestEmbedOptimizedForSize, TestEmbedOptimizedForSize.Builder> {
     private static readonly TestEmbedOptimizedForSize defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testEmbedOptimizedForSizeFieldNames = new string[] { "optional_message", "repeated_message" };
@@ -191,7 +191,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestEmbedOptimizedForSize, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestEmptyProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestEmptyProtoFile.cs
index c3544f21a3..eb6c6c74aa 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestEmptyProtoFile.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestEmptyProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestEmptyProtoFile {
   
     #region Extension registration
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestExtrasIssuesProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestExtrasIssuesProtoFile.cs
index 0f66e5d666..db56e8b919 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestExtrasIssuesProtoFile.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestExtrasIssuesProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace UnitTest.Issues.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestExtrasIssuesProtoFile {
   
     #region Extension registration
@@ -75,7 +75,7 @@ namespace UnitTest.Issues.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class A : pb::GeneratedMessage<A, A.Builder> {
     private static readonly A defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _aFieldNames = new string[] { "_A" };
@@ -180,7 +180,7 @@ namespace UnitTest.Issues.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<A, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -314,7 +314,7 @@ namespace UnitTest.Issues.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class B : pb::GeneratedMessage<B, B.Builder> {
     private static readonly B defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _bFieldNames = new string[] { "B_" };
@@ -419,7 +419,7 @@ namespace UnitTest.Issues.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<B, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -553,7 +553,7 @@ namespace UnitTest.Issues.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class AB : pb::GeneratedMessage<AB, AB.Builder> {
     private static readonly AB defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _aBFieldNames = new string[] { "a_b" };
@@ -658,7 +658,7 @@ namespace UnitTest.Issues.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<AB, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -792,7 +792,7 @@ namespace UnitTest.Issues.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class NumberField : pb::GeneratedMessage<NumberField, NumberField.Builder> {
     private static readonly NumberField defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _numberFieldFieldNames = new string[] { "_01" };
@@ -899,7 +899,7 @@ namespace UnitTest.Issues.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<NumberField, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestGenericServices.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestGenericServices.cs
index f21475ad43..9227c7cc40 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestGenericServices.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestGenericServices.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestGenericServices {
   
     #region Extension registration
@@ -62,7 +62,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Services
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public abstract class TestGenericService : pb::IService {
     public abstract void Foo(
         pb::IRpcController controller,
@@ -141,7 +141,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public class Stub : global::Google.ProtocolBuffers.TestProtos.TestGenericService {
       internal Stub(pb::IRpcChannel channel) {
         this.channel = channel;
@@ -174,7 +174,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   }
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public abstract class TestGenericServiceWithCustomOptions : pb::IService {
     public abstract void Foo(
         pb::IRpcController controller,
@@ -240,7 +240,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public class Stub : global::Google.ProtocolBuffers.TestProtos.TestGenericServiceWithCustomOptions {
       internal Stub(pb::IRpcChannel channel) {
         this.channel = channel;
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestGoogleSizeProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestGoogleSizeProtoFile.cs
index 83250c1eb8..77635f2132 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestGoogleSizeProtoFile.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestGoogleSizeProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestGoogleSizeProtoFile {
   
     #region Extension registration
@@ -135,7 +135,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class SizeMessage1 : pb::GeneratedMessage<SizeMessage1, SizeMessage1.Builder> {
     private static readonly SizeMessage1 defaultInstance = new Builder().BuildPartial();
     public static SizeMessage1 DefaultInstance {
@@ -611,7 +611,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<SizeMessage1, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -1436,7 +1436,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class SizeMessage1SubMessage : pb::GeneratedMessage<SizeMessage1SubMessage, SizeMessage1SubMessage.Builder> {
     private static readonly SizeMessage1SubMessage defaultInstance = new Builder().BuildPartial();
     public static SizeMessage1SubMessage DefaultInstance {
@@ -1702,7 +1702,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<SizeMessage1SubMessage, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -2119,7 +2119,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class SizeMessage2 : pb::GeneratedMessage<SizeMessage2, SizeMessage2.Builder> {
     private static readonly SizeMessage2 defaultInstance = new Builder().BuildPartial();
     public static SizeMessage2 DefaultInstance {
@@ -2145,11 +2145,11 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class Group1 : pb::GeneratedMessage<Group1, Group1.Builder> {
         private static readonly Group1 defaultInstance = new Builder().BuildPartial();
         public static Group1 DefaultInstance {
@@ -2378,7 +2378,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<Group1, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -3118,7 +3118,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<SizeMessage2, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -3760,7 +3760,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class SizeMessage2GroupedMessage : pb::GeneratedMessage<SizeMessage2GroupedMessage, SizeMessage2GroupedMessage.Builder> {
     private static readonly SizeMessage2GroupedMessage defaultInstance = new Builder().BuildPartial();
     public static SizeMessage2GroupedMessage DefaultInstance {
@@ -3932,7 +3932,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<SizeMessage2GroupedMessage, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestGoogleSpeedProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestGoogleSpeedProtoFile.cs
index 15a3aa49e0..918be643ec 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestGoogleSpeedProtoFile.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestGoogleSpeedProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestGoogleSpeedProtoFile {
   
     #region Extension registration
@@ -135,7 +135,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class SpeedMessage1 : pb::GeneratedMessage<SpeedMessage1, SpeedMessage1.Builder> {
     private static readonly SpeedMessage1 defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _speedMessage1FieldNames = new string[] { "field1", "field100", "field101", "field102", "field103", "field104", "field12", "field128", "field129", "field13", "field130", "field131", "field14", "field15", "field150", "field16", "field17", "field18", "field2", "field22", "field23", "field24", "field25", "field271", "field272", "field280", "field29", "field3", "field30", "field4", "field5", "field59", "field6", "field60", "field67", "field68", "field7", "field78", "field80", "field81", "field9" };
@@ -890,7 +890,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<SpeedMessage1, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -2070,7 +2070,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class SpeedMessage1SubMessage : pb::GeneratedMessage<SpeedMessage1SubMessage, SpeedMessage1SubMessage.Builder> {
     private static readonly SpeedMessage1SubMessage defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _speedMessage1SubMessageFieldNames = new string[] { "field1", "field12", "field13", "field14", "field15", "field16", "field19", "field2", "field20", "field203", "field204", "field205", "field206", "field207", "field21", "field22", "field23", "field28", "field3", "field300" };
@@ -2483,7 +2483,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<SpeedMessage1SubMessage, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -3102,7 +3102,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class SpeedMessage2 : pb::GeneratedMessage<SpeedMessage2, SpeedMessage2.Builder> {
     private static readonly SpeedMessage2 defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _speedMessage2FieldNames = new string[] { "field1", "field109", "field127", "field128", "field129", "field130", "field131", "field2", "field205", "field206", "field21", "field210", "field211", "field212", "field213", "field216", "field217", "field218", "field220", "field221", "field222", "field25", "field3", "field30", "field4", "field6", "field63", "field71", "field75", "group1" };
@@ -3130,11 +3130,11 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class Group1 : pb::GeneratedMessage<Group1, Group1.Builder> {
         private static readonly Group1 defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _group1FieldNames = new string[] { "field11", "field12", "field13", "field14", "field15", "field16", "field20", "field22", "field24", "field26", "field27", "field28", "field29", "field31", "field5", "field73" };
@@ -3503,7 +3503,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<Group1, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -4643,7 +4643,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<SpeedMessage2, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -5558,7 +5558,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class SpeedMessage2GroupedMessage : pb::GeneratedMessage<SpeedMessage2GroupedMessage, SpeedMessage2GroupedMessage.Builder> {
     private static readonly SpeedMessage2GroupedMessage defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _speedMessage2GroupedMessageFieldNames = new string[] { "field1", "field10", "field11", "field2", "field3", "field4", "field5", "field6", "field7", "field8", "field9" };
@@ -5823,7 +5823,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<SpeedMessage2GroupedMessage, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestImportLiteProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestImportLiteProtoFile.cs
index 4702794028..a96833bef0 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestImportLiteProtoFile.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestImportLiteProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestImportLiteProtoFile {
   
     #region Extension registration
@@ -29,7 +29,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   }
   #region Enums
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public enum ImportEnumLite {
     IMPORT_LITE_FOO = 7,
     IMPORT_LITE_BAR = 8,
@@ -41,7 +41,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class ImportMessageLite : pb::GeneratedMessageLite<ImportMessageLite, ImportMessageLite.Builder> {
     private static readonly ImportMessageLite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _importMessageLiteFieldNames = new string[] { "d" };
@@ -155,7 +155,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilderLite<ImportMessageLite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestImportProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestImportProtoFile.cs
index ac745a7fbd..5749c97f88 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestImportProtoFile.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestImportProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestImportProtoFile {
   
     #region Extension registration
@@ -57,7 +57,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   }
   #region Enums
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public enum ImportEnum {
     IMPORT_FOO = 7,
     IMPORT_BAR = 8,
@@ -69,7 +69,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class ImportMessage : pb::GeneratedMessage<ImportMessage, ImportMessage.Builder> {
     private static readonly ImportMessage defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _importMessageFieldNames = new string[] { "d" };
@@ -174,7 +174,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<ImportMessage, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestMessageSetProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestMessageSetProtoFile.cs
index 9302d5ac07..8a6bb58929 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestMessageSetProtoFile.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestMessageSetProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestMessageSetProtoFile {
   
     #region Extension registration
@@ -101,7 +101,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestMessageSet : pb::ExtendableMessage<TestMessageSet, TestMessageSet.Builder> {
     private static readonly TestMessageSet defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testMessageSetFieldNames = new string[] {  };
@@ -194,7 +194,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestMessageSet, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -304,7 +304,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestMessageSetContainer : pb::GeneratedMessage<TestMessageSetContainer, TestMessageSetContainer.Builder> {
     private static readonly TestMessageSetContainer defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testMessageSetContainerFieldNames = new string[] { "message_set" };
@@ -409,7 +409,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestMessageSetContainer, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -566,7 +566,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestMessageSetExtension1 : pb::GeneratedMessage<TestMessageSetExtension1, TestMessageSetExtension1.Builder> {
     private static readonly TestMessageSetExtension1 defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testMessageSetExtension1FieldNames = new string[] { "i" };
@@ -673,7 +673,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestMessageSetExtension1, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -807,7 +807,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestMessageSetExtension2 : pb::GeneratedMessage<TestMessageSetExtension2, TestMessageSetExtension2.Builder> {
     private static readonly TestMessageSetExtension2 defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testMessageSetExtension2FieldNames = new string[] { "str" };
@@ -914,7 +914,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestMessageSetExtension2, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -1049,7 +1049,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class RawMessageSet : pb::GeneratedMessage<RawMessageSet, RawMessageSet.Builder> {
     private static readonly RawMessageSet defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _rawMessageSetFieldNames = new string[] { "item" };
@@ -1077,11 +1077,11 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class Item : pb::GeneratedMessage<Item, Item.Builder> {
         private static readonly Item defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _itemFieldNames = new string[] { "message", "type_id" };
@@ -1204,7 +1204,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<Item, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -1447,7 +1447,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<RawMessageSet, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestNoGenericServicesProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestNoGenericServicesProtoFile.cs
index 6b6aa7e2a4..74d6af60eb 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestNoGenericServicesProtoFile.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestNoGenericServicesProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos.NoGenericService {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestNoGenericServicesProtoFile {
   
     #region Extension registration
@@ -69,7 +69,7 @@ namespace Google.ProtocolBuffers.TestProtos.NoGenericService {
   }
   #region Enums
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public enum TestEnum {
     FOO = 1,
   }
@@ -79,7 +79,7 @@ namespace Google.ProtocolBuffers.TestProtos.NoGenericService {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestMessage : pb::ExtendableMessage<TestMessage, TestMessage.Builder> {
     private static readonly TestMessage defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testMessageFieldNames = new string[] { "a" };
@@ -188,7 +188,7 @@ namespace Google.ProtocolBuffers.TestProtos.NoGenericService {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestMessage, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestOptimizeForProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestOptimizeForProtoFile.cs
index c1ab93ff8c..c7153abc4c 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestOptimizeForProtoFile.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestOptimizeForProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestOptimizeForProtoFile {
   
     #region Extension registration
@@ -83,7 +83,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestOptimizedForSize : pb::ExtendableMessage<TestOptimizedForSize, TestOptimizedForSize.Builder> {
     private static readonly TestOptimizedForSize defaultInstance = new Builder().BuildPartial();
     public static TestOptimizedForSize DefaultInstance {
@@ -169,7 +169,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestOptimizedForSize, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -270,7 +270,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestRequiredOptimizedForSize : pb::GeneratedMessage<TestRequiredOptimizedForSize, TestRequiredOptimizedForSize.Builder> {
     private static readonly TestRequiredOptimizedForSize defaultInstance = new Builder().BuildPartial();
     public static TestRequiredOptimizedForSize DefaultInstance {
@@ -342,7 +342,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestRequiredOptimizedForSize, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -407,7 +407,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestOptionalOptimizedForSize : pb::GeneratedMessage<TestOptionalOptimizedForSize, TestOptionalOptimizedForSize.Builder> {
     private static readonly TestOptionalOptimizedForSize defaultInstance = new Builder().BuildPartial();
     public static TestOptionalOptimizedForSize DefaultInstance {
@@ -479,7 +479,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestOptionalOptimizedForSize, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestProtoFile.cs
index f46ec30148..d8824d49a4 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestProtoFile.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestProtoFile {
   
     #region Extension registration
@@ -1086,7 +1086,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   }
   #region Enums
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public enum ForeignEnum {
     FOREIGN_FOO = 4,
     FOREIGN_BAR = 5,
@@ -1094,7 +1094,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   }
   
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public enum TestEnumWithDupValue {
     FOO1 = 1,
     BAR1 = 2,
@@ -1104,7 +1104,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   }
   
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public enum TestSparseEnum {
     SPARSE_A = 123,
     SPARSE_B = 62374,
@@ -1120,7 +1120,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestAllTypes : pb::GeneratedMessage<TestAllTypes, TestAllTypes.Builder> {
     private static readonly TestAllTypes defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testAllTypesFieldNames = new string[] { "default_bool", "default_bytes", "default_cord", "default_double", "default_fixed32", "default_fixed64", "default_float", "default_foreign_enum", "default_import_enum", "default_int32", "default_int64", "default_nested_enum", "default_sfixed32", "default_sfixed64", "default_sint32", "default_sint64", "default_string", "default_string_piece", "default_uint32", "default_uint64", "optional_bool", "optional_bytes", "optional_cord", "optional_double", "optional_fixed32", "optional_fixed64", "optional_float", "optional_foreign_enum", "optional_foreign_message", "optional_import_enum", "optional_import_message", "optional_int32", "optional_int64", "optional_nested_enum", "optional_nested_message", "optional_sfixed32", "optional_sfixed64", "optional_sint32", "optional_sint64", "optional_string", "optional_string_piece", "optional_uint32", "optional_uint64", "optionalgroup", "repeated_bool", "repeated_bytes", "repeated_cord", "repeated_double", "repeated_fixed32", "repeated_fixed64", "repeated_float", "repeated_foreign_enum", "repeated_foreign_message", "repeated_import_enum", "repeated_import_message", "repeated_int32", "repeated_int64", "repeated_nested_enum", "repeated_nested_message", "repeated_sfixed32", "repeated_sfixed64", "repeated_sint32", "repeated_sint64", "repeated_string", "repeated_string_piece", "repeated_uint32", "repeated_uint64", "repeatedgroup" };
@@ -1148,10 +1148,10 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public enum NestedEnum {
         FOO = 1,
         BAR = 2,
@@ -1160,7 +1160,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class NestedMessage : pb::GeneratedMessage<NestedMessage, NestedMessage.Builder> {
         private static readonly NestedMessage defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _nestedMessageFieldNames = new string[] { "bb" };
@@ -1265,7 +1265,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<NestedMessage, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -1399,7 +1399,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class OptionalGroup : pb::GeneratedMessage<OptionalGroup, OptionalGroup.Builder> {
         private static readonly OptionalGroup defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _optionalGroupFieldNames = new string[] { "a" };
@@ -1504,7 +1504,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<OptionalGroup, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -1638,7 +1638,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class RepeatedGroup : pb::GeneratedMessage<RepeatedGroup, RepeatedGroup.Builder> {
         private static readonly RepeatedGroup defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _repeatedGroupFieldNames = new string[] { "a" };
@@ -1743,7 +1743,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<RepeatedGroup, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -3186,7 +3186,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestAllTypes, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -5494,7 +5494,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestDeprecatedFields : pb::GeneratedMessage<TestDeprecatedFields, TestDeprecatedFields.Builder> {
     private static readonly TestDeprecatedFields defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testDeprecatedFieldsFieldNames = new string[] { "deprecated_int32" };
@@ -5599,7 +5599,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestDeprecatedFields, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -5733,7 +5733,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class ForeignMessage : pb::GeneratedMessage<ForeignMessage, ForeignMessage.Builder> {
     private static readonly ForeignMessage defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _foreignMessageFieldNames = new string[] { "c" };
@@ -5838,7 +5838,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<ForeignMessage, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -5972,7 +5972,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestAllExtensions : pb::ExtendableMessage<TestAllExtensions, TestAllExtensions.Builder> {
     private static readonly TestAllExtensions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testAllExtensionsFieldNames = new string[] {  };
@@ -6065,7 +6065,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestAllExtensions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -6175,7 +6175,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class OptionalGroup_extension : pb::GeneratedMessage<OptionalGroup_extension, OptionalGroup_extension.Builder> {
     private static readonly OptionalGroup_extension defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _optionalGroupExtensionFieldNames = new string[] { "a" };
@@ -6280,7 +6280,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<OptionalGroup_extension, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -6414,7 +6414,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class RepeatedGroup_extension : pb::GeneratedMessage<RepeatedGroup_extension, RepeatedGroup_extension.Builder> {
     private static readonly RepeatedGroup_extension defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _repeatedGroupExtensionFieldNames = new string[] { "a" };
@@ -6519,7 +6519,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<RepeatedGroup_extension, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -6653,7 +6653,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestNestedExtension : pb::GeneratedMessage<TestNestedExtension, TestNestedExtension.Builder> {
     private static readonly TestNestedExtension defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testNestedExtensionFieldNames = new string[] {  };
@@ -6744,7 +6744,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestNestedExtension, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -6853,7 +6853,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestRequired : pb::GeneratedMessage<TestRequired, TestRequired.Builder> {
     private static readonly TestRequired defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testRequiredFieldNames = new string[] { "a", "b", "c", "dummy10", "dummy11", "dummy12", "dummy13", "dummy14", "dummy15", "dummy16", "dummy17", "dummy18", "dummy19", "dummy2", "dummy20", "dummy21", "dummy22", "dummy23", "dummy24", "dummy25", "dummy26", "dummy27", "dummy28", "dummy29", "dummy30", "dummy31", "dummy32", "dummy4", "dummy5", "dummy6", "dummy7", "dummy8", "dummy9" };
@@ -7477,7 +7477,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestRequired, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -8411,7 +8411,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestRequiredForeign : pb::GeneratedMessage<TestRequiredForeign, TestRequiredForeign.Builder> {
     private static readonly TestRequiredForeign defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testRequiredForeignFieldNames = new string[] { "dummy", "optional_message", "repeated_message" };
@@ -8556,7 +8556,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestRequiredForeign, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -8784,7 +8784,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestForeignNested : pb::GeneratedMessage<TestForeignNested, TestForeignNested.Builder> {
     private static readonly TestForeignNested defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testForeignNestedFieldNames = new string[] { "foreign_nested" };
@@ -8889,7 +8889,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestForeignNested, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -9046,7 +9046,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestEmptyMessage : pb::GeneratedMessage<TestEmptyMessage, TestEmptyMessage.Builder> {
     private static readonly TestEmptyMessage defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testEmptyMessageFieldNames = new string[] {  };
@@ -9135,7 +9135,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestEmptyMessage, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -9244,7 +9244,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestEmptyMessageWithExtensions : pb::ExtendableMessage<TestEmptyMessageWithExtensions, TestEmptyMessageWithExtensions.Builder> {
     private static readonly TestEmptyMessageWithExtensions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testEmptyMessageWithExtensionsFieldNames = new string[] {  };
@@ -9337,7 +9337,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestEmptyMessageWithExtensions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -9447,7 +9447,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestMultipleExtensionRanges : pb::ExtendableMessage<TestMultipleExtensionRanges, TestMultipleExtensionRanges.Builder> {
     private static readonly TestMultipleExtensionRanges defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testMultipleExtensionRangesFieldNames = new string[] {  };
@@ -9542,7 +9542,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestMultipleExtensionRanges, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -9652,7 +9652,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestReallyLargeTagNumber : pb::GeneratedMessage<TestReallyLargeTagNumber, TestReallyLargeTagNumber.Builder> {
     private static readonly TestReallyLargeTagNumber defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testReallyLargeTagNumberFieldNames = new string[] { "a", "bb" };
@@ -9773,7 +9773,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestReallyLargeTagNumber, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -9932,7 +9932,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestRecursiveMessage : pb::GeneratedMessage<TestRecursiveMessage, TestRecursiveMessage.Builder> {
     private static readonly TestRecursiveMessage defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testRecursiveMessageFieldNames = new string[] { "a", "i" };
@@ -10053,7 +10053,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestRecursiveMessage, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -10235,7 +10235,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestMutualRecursionA : pb::GeneratedMessage<TestMutualRecursionA, TestMutualRecursionA.Builder> {
     private static readonly TestMutualRecursionA defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testMutualRecursionAFieldNames = new string[] { "bb" };
@@ -10340,7 +10340,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestMutualRecursionA, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -10497,7 +10497,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestMutualRecursionB : pb::GeneratedMessage<TestMutualRecursionB, TestMutualRecursionB.Builder> {
     private static readonly TestMutualRecursionB defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testMutualRecursionBFieldNames = new string[] { "a", "optional_int32" };
@@ -10618,7 +10618,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestMutualRecursionB, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -10800,7 +10800,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestDupFieldNumber : pb::GeneratedMessage<TestDupFieldNumber, TestDupFieldNumber.Builder> {
     private static readonly TestDupFieldNumber defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testDupFieldNumberFieldNames = new string[] { "a", "bar", "foo" };
@@ -10828,11 +10828,11 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class Foo : pb::GeneratedMessage<Foo, Foo.Builder> {
         private static readonly Foo defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _fooFieldNames = new string[] { "a" };
@@ -10937,7 +10937,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<Foo, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -11071,7 +11071,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class Bar : pb::GeneratedMessage<Bar, Bar.Builder> {
         private static readonly Bar defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _barFieldNames = new string[] { "a" };
@@ -11176,7 +11176,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<Bar, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -11423,7 +11423,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestDupFieldNumber, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -11653,7 +11653,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestNestedMessageHasBits : pb::GeneratedMessage<TestNestedMessageHasBits, TestNestedMessageHasBits.Builder> {
     private static readonly TestNestedMessageHasBits defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testNestedMessageHasBitsFieldNames = new string[] { "optional_nested_message" };
@@ -11681,11 +11681,11 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class NestedMessage : pb::GeneratedMessage<NestedMessage, NestedMessage.Builder> {
         private static readonly NestedMessage defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _nestedMessageFieldNames = new string[] { "nestedmessage_repeated_foreignmessage", "nestedmessage_repeated_int32" };
@@ -11815,7 +11815,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<NestedMessage, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -12086,7 +12086,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestNestedMessageHasBits, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -12243,7 +12243,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestCamelCaseFieldNames : pb::GeneratedMessage<TestCamelCaseFieldNames, TestCamelCaseFieldNames.Builder> {
     private static readonly TestCamelCaseFieldNames defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testCamelCaseFieldNamesFieldNames = new string[] { "CordField", "EnumField", "MessageField", "PrimitiveField", "RepeatedCordField", "RepeatedEnumField", "RepeatedMessageField", "RepeatedPrimitiveField", "RepeatedStringField", "RepeatedStringPieceField", "StringField", "StringPieceField" };
@@ -12563,7 +12563,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestCamelCaseFieldNames, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -13089,7 +13089,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestFieldOrderings : pb::ExtendableMessage<TestFieldOrderings, TestFieldOrderings.Builder> {
     private static readonly TestFieldOrderings defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testFieldOrderingsFieldNames = new string[] { "my_float", "my_int", "my_string" };
@@ -13231,7 +13231,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestFieldOrderings, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -13417,7 +13417,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestExtremeDefaultValues : pb::GeneratedMessage<TestExtremeDefaultValues, TestExtremeDefaultValues.Builder> {
     private static readonly TestExtremeDefaultValues defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testExtremeDefaultValuesFieldNames = new string[] { "escaped_bytes", "inf_double", "inf_float", "large_float", "large_uint32", "large_uint64", "nan_double", "nan_float", "neg_inf_double", "neg_inf_float", "negative_float", "negative_one_float", "one_float", "small_float", "small_int32", "small_int64", "small_negative_float", "utf8_string", "zero_float" };
@@ -13812,7 +13812,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestExtremeDefaultValues, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -14402,7 +14402,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class OneString : pb::GeneratedMessage<OneString, OneString.Builder> {
     private static readonly OneString defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _oneStringFieldNames = new string[] { "data" };
@@ -14507,7 +14507,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<OneString, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -14642,7 +14642,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class OneBytes : pb::GeneratedMessage<OneBytes, OneBytes.Builder> {
     private static readonly OneBytes defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _oneBytesFieldNames = new string[] { "data" };
@@ -14747,7 +14747,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<OneBytes, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -14882,7 +14882,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestPackedTypes : pb::GeneratedMessage<TestPackedTypes, TestPackedTypes.Builder> {
     private static readonly TestPackedTypes defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testPackedTypesFieldNames = new string[] { "packed_bool", "packed_double", "packed_enum", "packed_fixed32", "packed_fixed64", "packed_float", "packed_int32", "packed_int64", "packed_sfixed32", "packed_sfixed64", "packed_sint32", "packed_sint64", "packed_uint32", "packed_uint64" };
@@ -15344,7 +15344,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestPackedTypes, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -15972,7 +15972,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestUnpackedTypes : pb::GeneratedMessage<TestUnpackedTypes, TestUnpackedTypes.Builder> {
     private static readonly TestUnpackedTypes defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testUnpackedTypesFieldNames = new string[] { "unpacked_bool", "unpacked_double", "unpacked_enum", "unpacked_fixed32", "unpacked_fixed64", "unpacked_float", "unpacked_int32", "unpacked_int64", "unpacked_sfixed32", "unpacked_sfixed64", "unpacked_sint32", "unpacked_sint64", "unpacked_uint32", "unpacked_uint64" };
@@ -16379,7 +16379,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestUnpackedTypes, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -17007,7 +17007,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestPackedExtensions : pb::ExtendableMessage<TestPackedExtensions, TestPackedExtensions.Builder> {
     private static readonly TestPackedExtensions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testPackedExtensionsFieldNames = new string[] {  };
@@ -17100,7 +17100,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestPackedExtensions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -17210,7 +17210,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestUnpackedExtensions : pb::ExtendableMessage<TestUnpackedExtensions, TestUnpackedExtensions.Builder> {
     private static readonly TestUnpackedExtensions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testUnpackedExtensionsFieldNames = new string[] {  };
@@ -17303,7 +17303,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestUnpackedExtensions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -17413,7 +17413,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestDynamicExtensions : pb::GeneratedMessage<TestDynamicExtensions, TestDynamicExtensions.Builder> {
     private static readonly TestDynamicExtensions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testDynamicExtensionsFieldNames = new string[] { "dynamic_enum_extension", "dynamic_message_extension", "enum_extension", "message_extension", "packed_extension", "repeated_extension", "scalar_extension" };
@@ -17441,10 +17441,10 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public enum DynamicEnumType {
         DYNAMIC_FOO = 2200,
         DYNAMIC_BAR = 2201,
@@ -17453,7 +17453,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class DynamicMessageType : pb::GeneratedMessage<DynamicMessageType, DynamicMessageType.Builder> {
         private static readonly DynamicMessageType defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _dynamicMessageTypeFieldNames = new string[] { "dynamic_field" };
@@ -17558,7 +17558,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<DynamicMessageType, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -17888,7 +17888,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestDynamicExtensions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -18257,7 +18257,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestRepeatedScalarDifferentTagSizes : pb::GeneratedMessage<TestRepeatedScalarDifferentTagSizes, TestRepeatedScalarDifferentTagSizes.Builder> {
     private static readonly TestRepeatedScalarDifferentTagSizes defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testRepeatedScalarDifferentTagSizesFieldNames = new string[] { "repeated_fixed32", "repeated_fixed64", "repeated_float", "repeated_int32", "repeated_int64", "repeated_uint64" };
@@ -18484,7 +18484,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestRepeatedScalarDifferentTagSizes, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -18818,7 +18818,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class FooRequest : pb::GeneratedMessage<FooRequest, FooRequest.Builder> {
     private static readonly FooRequest defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _fooRequestFieldNames = new string[] {  };
@@ -18907,7 +18907,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<FooRequest, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -19016,7 +19016,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class FooResponse : pb::GeneratedMessage<FooResponse, FooResponse.Builder> {
     private static readonly FooResponse defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _fooResponseFieldNames = new string[] {  };
@@ -19105,7 +19105,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<FooResponse, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -19214,7 +19214,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class BarRequest : pb::GeneratedMessage<BarRequest, BarRequest.Builder> {
     private static readonly BarRequest defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _barRequestFieldNames = new string[] {  };
@@ -19303,7 +19303,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<BarRequest, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -19412,7 +19412,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class BarResponse : pb::GeneratedMessage<BarResponse, BarResponse.Builder> {
     private static readonly BarResponse defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _barResponseFieldNames = new string[] {  };
@@ -19501,7 +19501,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<BarResponse, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestRpcInterop.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestRpcInterop.cs
index 55d1fdacb0..ae309fa706 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestRpcInterop.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestRpcInterop.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestRpcInterop {
   
     #region Extension registration
@@ -81,7 +81,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class SearchRequest : pb::GeneratedMessage<SearchRequest, SearchRequest.Builder> {
     private static readonly SearchRequest defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _searchRequestFieldNames = new string[] { "Criteria" };
@@ -193,7 +193,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<SearchRequest, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -338,7 +338,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class SearchResponse : pb::GeneratedMessage<SearchResponse, SearchResponse.Builder> {
     private static readonly SearchResponse defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _searchResponseFieldNames = new string[] { "results" };
@@ -366,11 +366,11 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class ResultItem : pb::GeneratedMessage<ResultItem, ResultItem.Builder> {
         private static readonly ResultItem defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _resultItemFieldNames = new string[] { "name", "url" };
@@ -492,7 +492,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<ResultItem, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -739,7 +739,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<SearchResponse, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -894,7 +894,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class RefineSearchRequest : pb::GeneratedMessage<RefineSearchRequest, RefineSearchRequest.Builder> {
     private static readonly RefineSearchRequest defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _refineSearchRequestFieldNames = new string[] { "Criteria", "previous_results" };
@@ -1024,7 +1024,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<RefineSearchRequest, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -1220,7 +1220,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Services
   [global::System.Runtime.InteropServices.GuidAttribute("a65f0925-fd11-4f94-b166-89ac4f027205")]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public partial interface ISearchService {
     [global::System.Runtime.InteropServices.DispId(5)]
     global::Google.ProtocolBuffers.TestProtos.SearchResponse Search(global::Google.ProtocolBuffers.TestProtos.SearchRequest searchRequest);
@@ -1230,7 +1230,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   [global::System.CLSCompliant(false)]
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public partial class SearchService : ISearchService, pb::IRpcDispatch, global::System.IDisposable {
     private readonly bool dispose;
     private readonly pb::IRpcDispatch dispatch;
@@ -1260,7 +1260,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     [global::System.CLSCompliant(false)]
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public partial class Dispatch : pb::IRpcDispatch, global::System.IDisposable {
       private readonly bool dispose;
       private readonly ISearchService implementation;
@@ -1288,7 +1288,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     [global::System.CLSCompliant(false)]
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public partial class ServerStub : pb::IRpcServerStub, global::System.IDisposable {
       private readonly bool dispose;
       private readonly pb::IRpcDispatch implementation;
diff --git a/src/ProtocolBuffers.Test/TestProtos/UnitTestXmlSerializerTestProtoFile.cs b/src/ProtocolBuffers.Test/TestProtos/UnitTestXmlSerializerTestProtoFile.cs
index c9f5ebdfeb..3d818a6082 100644
--- a/src/ProtocolBuffers.Test/TestProtos/UnitTestXmlSerializerTestProtoFile.cs
+++ b/src/ProtocolBuffers.Test/TestProtos/UnitTestXmlSerializerTestProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestXmlSerializerTestProtoFile {
   
     #region Extension registration
@@ -124,7 +124,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   }
   #region Enums
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public enum EnumOptions {
     ONE = 0,
     TWO = 1,
@@ -136,7 +136,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestXmlChild : pb::GeneratedMessage<TestXmlChild, TestXmlChild.Builder> {
     private static readonly TestXmlChild defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testXmlChildFieldNames = new string[] { "binary", "options" };
@@ -266,7 +266,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestXmlChild, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -445,7 +445,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestXmlNoFields : pb::GeneratedMessage<TestXmlNoFields, TestXmlNoFields.Builder> {
     private static readonly TestXmlNoFields defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testXmlNoFieldsFieldNames = new string[] {  };
@@ -534,7 +534,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestXmlNoFields, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -643,7 +643,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestXmlRescursive : pb::GeneratedMessage<TestXmlRescursive, TestXmlRescursive.Builder> {
     private static readonly TestXmlRescursive defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testXmlRescursiveFieldNames = new string[] { "child" };
@@ -748,7 +748,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestXmlRescursive, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -905,7 +905,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestXmlMessage : pb::ExtendableMessage<TestXmlMessage, TestXmlMessage.Builder> {
     private static readonly TestXmlMessage defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testXmlMessageFieldNames = new string[] { "child", "children", "number", "numbers", "text", "textlines", "valid" };
@@ -933,11 +933,11 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class Children : pb::GeneratedMessage<Children, Children.Builder> {
         private static readonly Children defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _childrenFieldNames = new string[] { "binary", "options" };
@@ -1067,7 +1067,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<Children, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -1443,7 +1443,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestXmlMessage, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -1794,7 +1794,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestXmlExtension : pb::GeneratedMessage<TestXmlExtension, TestXmlExtension.Builder> {
     private static readonly TestXmlExtension defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testXmlExtensionFieldNames = new string[] { "number" };
@@ -1900,7 +1900,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestXmlExtension, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffers/DescriptorProtos/CSharpOptions.cs b/src/ProtocolBuffers/DescriptorProtos/CSharpOptions.cs
index 98fb3dfe91..853b0e7d09 100644
--- a/src/ProtocolBuffers/DescriptorProtos/CSharpOptions.cs
+++ b/src/ProtocolBuffers/DescriptorProtos/CSharpOptions.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class CSharpOptions {
   
     #region Extension registration
@@ -110,7 +110,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   }
   #region Enums
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public enum CSharpServiceType {
     NONE = 0,
     GENERIC = 1,
@@ -123,7 +123,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class CSharpFileOptions : pb::GeneratedMessage<CSharpFileOptions, CSharpFileOptions.Builder> {
     private static readonly CSharpFileOptions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _cSharpFileOptionsFieldNames = new string[] { "cls_compliance", "code_contracts", "expand_namespace_directories", "file_extension", "ignore_google_protobuf", "multiple_files", "namespace", "nest_classes", "output_directory", "public_classes", "service_generator_type", "umbrella_classname", "umbrella_namespace" };
@@ -420,7 +420,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<CSharpFileOptions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -867,7 +867,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class CSharpFieldOptions : pb::GeneratedMessage<CSharpFieldOptions, CSharpFieldOptions.Builder> {
     private static readonly CSharpFieldOptions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _cSharpFieldOptionsFieldNames = new string[] { "property_name" };
@@ -972,7 +972,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<CSharpFieldOptions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -1107,7 +1107,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class CSharpServiceOptions : pb::GeneratedMessage<CSharpServiceOptions, CSharpServiceOptions.Builder> {
     private static readonly CSharpServiceOptions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _cSharpServiceOptionsFieldNames = new string[] { "interface_id" };
@@ -1212,7 +1212,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<CSharpServiceOptions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -1347,7 +1347,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class CSharpMethodOptions : pb::GeneratedMessage<CSharpMethodOptions, CSharpMethodOptions.Builder> {
     private static readonly CSharpMethodOptions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _cSharpMethodOptionsFieldNames = new string[] { "dispatch_id" };
@@ -1452,7 +1452,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<CSharpMethodOptions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffers/DescriptorProtos/DescriptorProtoFile.cs b/src/ProtocolBuffers/DescriptorProtos/DescriptorProtoFile.cs
index 78c37ead33..5b48cde198 100644
--- a/src/ProtocolBuffers/DescriptorProtos/DescriptorProtoFile.cs
+++ b/src/ProtocolBuffers/DescriptorProtos/DescriptorProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class DescriptorProtoFile {
   
     #region Extension registration
@@ -231,7 +231,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class FileDescriptorSet : pb::GeneratedMessage<FileDescriptorSet, FileDescriptorSet.Builder> {
     private static readonly FileDescriptorSet defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _fileDescriptorSetFieldNames = new string[] { "file" };
@@ -341,7 +341,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<FileDescriptorSet, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -496,7 +496,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class FileDescriptorProto : pb::GeneratedMessage<FileDescriptorProto, FileDescriptorProto.Builder> {
     private static readonly FileDescriptorProto defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _fileDescriptorProtoFieldNames = new string[] { "dependency", "enum_type", "extension", "message_type", "name", "options", "package", "service" };
@@ -743,7 +743,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<FileDescriptorProto, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -1172,7 +1172,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class DescriptorProto : pb::GeneratedMessage<DescriptorProto, DescriptorProto.Builder> {
     private static readonly DescriptorProto defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _descriptorProtoFieldNames = new string[] { "enum_type", "extension", "extension_range", "field", "name", "nested_type", "options" };
@@ -1200,11 +1200,11 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class ExtensionRange : pb::GeneratedMessage<ExtensionRange, ExtensionRange.Builder> {
         private static readonly ExtensionRange defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _extensionRangeFieldNames = new string[] { "end", "start" };
@@ -1325,7 +1325,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<ExtensionRange, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -1686,7 +1686,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<DescriptorProto, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -2099,7 +2099,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class FieldDescriptorProto : pb::GeneratedMessage<FieldDescriptorProto, FieldDescriptorProto.Builder> {
     private static readonly FieldDescriptorProto defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _fieldDescriptorProtoFieldNames = new string[] { "default_value", "extendee", "label", "name", "number", "options", "type", "type_name" };
@@ -2127,10 +2127,10 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public enum Type {
         TYPE_DOUBLE = 1,
         TYPE_FLOAT = 2,
@@ -2153,7 +2153,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
       }
       
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public enum Label {
         LABEL_OPTIONAL = 1,
         LABEL_REQUIRED = 2,
@@ -2358,7 +2358,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<FieldDescriptorProto, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -2710,7 +2710,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class EnumDescriptorProto : pb::GeneratedMessage<EnumDescriptorProto, EnumDescriptorProto.Builder> {
     private static readonly EnumDescriptorProto defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _enumDescriptorProtoFieldNames = new string[] { "name", "options", "value" };
@@ -2855,7 +2855,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<EnumDescriptorProto, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -3084,7 +3084,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class EnumValueDescriptorProto : pb::GeneratedMessage<EnumValueDescriptorProto, EnumValueDescriptorProto.Builder> {
     private static readonly EnumValueDescriptorProto defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _enumValueDescriptorProtoFieldNames = new string[] { "name", "number", "options" };
@@ -3224,7 +3224,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<EnumValueDescriptorProto, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -3432,7 +3432,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class ServiceDescriptorProto : pb::GeneratedMessage<ServiceDescriptorProto, ServiceDescriptorProto.Builder> {
     private static readonly ServiceDescriptorProto defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _serviceDescriptorProtoFieldNames = new string[] { "method", "name", "options" };
@@ -3577,7 +3577,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<ServiceDescriptorProto, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -3806,7 +3806,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class MethodDescriptorProto : pb::GeneratedMessage<MethodDescriptorProto, MethodDescriptorProto.Builder> {
     private static readonly MethodDescriptorProto defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _methodDescriptorProtoFieldNames = new string[] { "input_type", "name", "options", "output_type" };
@@ -3962,7 +3962,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<MethodDescriptorProto, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -4197,7 +4197,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class FileOptions : pb::ExtendableMessage<FileOptions, FileOptions.Builder> {
     private static readonly FileOptions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _fileOptionsFieldNames = new string[] { "cc_generic_services", "java_generic_services", "java_multiple_files", "java_outer_classname", "java_package", "optimize_for", "py_generic_services", "uninterpreted_option" };
@@ -4225,10 +4225,10 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public enum OptimizeMode {
         SPEED = 1,
         CODE_SIZE = 2,
@@ -4439,7 +4439,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<FileOptions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -4780,7 +4780,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class MessageOptions : pb::ExtendableMessage<MessageOptions, MessageOptions.Builder> {
     private static readonly MessageOptions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _messageOptionsFieldNames = new string[] { "message_set_wire_format", "no_standard_descriptor_accessor", "uninterpreted_option" };
@@ -4926,7 +4926,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<MessageOptions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -5132,7 +5132,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class FieldOptions : pb::ExtendableMessage<FieldOptions, FieldOptions.Builder> {
     private static readonly FieldOptions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _fieldOptionsFieldNames = new string[] { "ctype", "deprecated", "experimental_map_key", "packed", "uninterpreted_option" };
@@ -5160,10 +5160,10 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public enum CType {
         STRING = 0,
         CORD = 1,
@@ -5326,7 +5326,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<FieldOptions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -5591,7 +5591,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class EnumOptions : pb::ExtendableMessage<EnumOptions, EnumOptions.Builder> {
     private static readonly EnumOptions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _enumOptionsFieldNames = new string[] { "uninterpreted_option" };
@@ -5705,7 +5705,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<EnumOptions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -5861,7 +5861,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class EnumValueOptions : pb::ExtendableMessage<EnumValueOptions, EnumValueOptions.Builder> {
     private static readonly EnumValueOptions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _enumValueOptionsFieldNames = new string[] { "uninterpreted_option" };
@@ -5975,7 +5975,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<EnumValueOptions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -6131,7 +6131,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class ServiceOptions : pb::ExtendableMessage<ServiceOptions, ServiceOptions.Builder> {
     private static readonly ServiceOptions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _serviceOptionsFieldNames = new string[] { "uninterpreted_option" };
@@ -6245,7 +6245,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<ServiceOptions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -6401,7 +6401,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class MethodOptions : pb::ExtendableMessage<MethodOptions, MethodOptions.Builder> {
     private static readonly MethodOptions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _methodOptionsFieldNames = new string[] { "uninterpreted_option" };
@@ -6515,7 +6515,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<MethodOptions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -6671,7 +6671,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class UninterpretedOption : pb::GeneratedMessage<UninterpretedOption, UninterpretedOption.Builder> {
     private static readonly UninterpretedOption defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _uninterpretedOptionFieldNames = new string[] { "double_value", "identifier_value", "name", "negative_int_value", "positive_int_value", "string_value" };
@@ -6699,11 +6699,11 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class NamePart : pb::GeneratedMessage<NamePart, NamePart.Builder> {
         private static readonly NamePart defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _namePartFieldNames = new string[] { "is_extension", "name_part" };
@@ -6826,7 +6826,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<NamePart, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -7153,7 +7153,7 @@ namespace Google.ProtocolBuffers.DescriptorProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<UninterpretedOption, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffers/Properties/AssemblyInfo.cs b/src/ProtocolBuffers/Properties/AssemblyInfo.cs
index b6581aa4c5..fdae52b878 100644
--- a/src/ProtocolBuffers/Properties/AssemblyInfo.cs
+++ b/src/ProtocolBuffers/Properties/AssemblyInfo.cs
@@ -65,12 +65,12 @@ using System.Runtime.CompilerServices;
 //
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
-// [assembly: AssemblyVersion("2.3.0.369")]
+// [assembly: AssemblyVersion("2.3.0.277")]
 
-[assembly: AssemblyVersion("2.3.0.369")]
+[assembly: AssemblyVersion("2.3.0.277")]
 #if !COMPACT_FRAMEWORK_35
 
-[assembly: AssemblyFileVersion("2.3.0.369")]
+[assembly: AssemblyFileVersion("2.3.0.277")]
 #endif
 
 [assembly: CLSCompliant(true)]
\ No newline at end of file
diff --git a/src/ProtocolBuffersLite.Test/TestProtos/UnitTestExtrasFullProtoFile.cs b/src/ProtocolBuffersLite.Test/TestProtos/UnitTestExtrasFullProtoFile.cs
index 523ad93730..a9ee77724b 100644
--- a/src/ProtocolBuffersLite.Test/TestProtos/UnitTestExtrasFullProtoFile.cs
+++ b/src/ProtocolBuffersLite.Test/TestProtos/UnitTestExtrasFullProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestExtrasFullProtoFile {
   
     #region Extension registration
@@ -126,7 +126,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestInteropPerson : pb::ExtendableMessage<TestInteropPerson, TestInteropPerson.Builder> {
     private static readonly TestInteropPerson defaultInstance = new Builder().BuildPartial();
     public static TestInteropPerson DefaultInstance {
@@ -152,10 +152,10 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public enum PhoneType {
         MOBILE = 0,
         HOME = 1,
@@ -164,7 +164,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class PhoneNumber : pb::GeneratedMessage<PhoneNumber, PhoneNumber.Builder> {
         private static readonly PhoneNumber defaultInstance = new Builder().BuildPartial();
         public static PhoneNumber DefaultInstance {
@@ -246,7 +246,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<PhoneNumber, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -330,7 +330,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class Addresses : pb::GeneratedMessage<Addresses, Addresses.Builder> {
         private static readonly Addresses defaultInstance = new Builder().BuildPartial();
         public static Addresses DefaultInstance {
@@ -443,7 +443,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<Addresses, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -692,7 +692,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestInteropPerson, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -900,7 +900,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestInteropEmployeeId : pb::GeneratedMessage<TestInteropEmployeeId, TestInteropEmployeeId.Builder> {
     private static readonly TestInteropEmployeeId defaultInstance = new Builder().BuildPartial();
     public static TestInteropEmployeeId DefaultInstance {
@@ -972,7 +972,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestInteropEmployeeId, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -1038,7 +1038,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestMissingFieldsA : pb::GeneratedMessage<TestMissingFieldsA, TestMissingFieldsA.Builder> {
     private static readonly TestMissingFieldsA defaultInstance = new Builder().BuildPartial();
     public static TestMissingFieldsA DefaultInstance {
@@ -1064,11 +1064,11 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class SubA : pb::GeneratedMessage<SubA, SubA.Builder> {
         private static readonly SubA defaultInstance = new Builder().BuildPartial();
         public static SubA DefaultInstance {
@@ -1152,7 +1152,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<SubA, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -1326,7 +1326,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestMissingFieldsA, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -1465,7 +1465,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestMissingFieldsB : pb::GeneratedMessage<TestMissingFieldsB, TestMissingFieldsB.Builder> {
     private static readonly TestMissingFieldsB defaultInstance = new Builder().BuildPartial();
     public static TestMissingFieldsB DefaultInstance {
@@ -1491,11 +1491,11 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class SubB : pb::GeneratedMessage<SubB, SubB.Builder> {
         private static readonly SubB defaultInstance = new Builder().BuildPartial();
         public static SubB DefaultInstance {
@@ -1569,7 +1569,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<SubB, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -1725,7 +1725,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestMissingFieldsB, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffersLite.Test/TestProtos/UnitTestExtrasLiteProtoFile.cs b/src/ProtocolBuffersLite.Test/TestProtos/UnitTestExtrasLiteProtoFile.cs
index d268954b16..bc214e2565 100644
--- a/src/ProtocolBuffersLite.Test/TestProtos/UnitTestExtrasLiteProtoFile.cs
+++ b/src/ProtocolBuffersLite.Test/TestProtos/UnitTestExtrasLiteProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestExtrasLiteProtoFile {
   
     #region Extension registration
@@ -44,7 +44,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   }
   #region Enums
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public enum ExtraEnum {
     DEFAULT = 10,
     EXLITE_FOO = 7,
@@ -57,7 +57,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestRequiredLite : pb::GeneratedMessageLite<TestRequiredLite, TestRequiredLite.Builder> {
     private static readonly TestRequiredLite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testRequiredLiteFieldNames = new string[] { "d", "en" };
@@ -192,7 +192,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilderLite<TestRequiredLite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -337,7 +337,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestInteropPersonLite : pb::ExtendableMessageLite<TestInteropPersonLite, TestInteropPersonLite.Builder> {
     private static readonly TestInteropPersonLite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testInteropPersonLiteFieldNames = new string[] { "addresses", "codes", "email", "id", "name", "phone" };
@@ -357,10 +357,10 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public enum PhoneType {
         MOBILE = 0,
         HOME = 1,
@@ -369,7 +369,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class PhoneNumber : pb::GeneratedMessageLite<PhoneNumber, PhoneNumber.Builder> {
         private static readonly PhoneNumber defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _phoneNumberFieldNames = new string[] { "number", "type" };
@@ -503,7 +503,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilderLite<PhoneNumber, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -649,7 +649,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class Addresses : pb::GeneratedMessageLite<Addresses, Addresses.Builder> {
         private static readonly Addresses defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _addressesFieldNames = new string[] { "address", "address2", "city", "state", "zip" };
@@ -844,7 +844,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilderLite<Addresses, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -1295,7 +1295,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilderLite<TestInteropPersonLite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -1591,7 +1591,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestInteropEmployeeIdLite : pb::GeneratedMessageLite<TestInteropEmployeeIdLite, TestInteropEmployeeIdLite.Builder> {
     private static readonly TestInteropEmployeeIdLite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testInteropEmployeeIdLiteFieldNames = new string[] { "number" };
@@ -1706,7 +1706,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilderLite<TestInteropEmployeeIdLite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffersLite.Test/TestProtos/UnitTestImportLiteProtoFile.cs b/src/ProtocolBuffersLite.Test/TestProtos/UnitTestImportLiteProtoFile.cs
index 4702794028..a96833bef0 100644
--- a/src/ProtocolBuffersLite.Test/TestProtos/UnitTestImportLiteProtoFile.cs
+++ b/src/ProtocolBuffersLite.Test/TestProtos/UnitTestImportLiteProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestImportLiteProtoFile {
   
     #region Extension registration
@@ -29,7 +29,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   }
   #region Enums
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public enum ImportEnumLite {
     IMPORT_LITE_FOO = 7,
     IMPORT_LITE_BAR = 8,
@@ -41,7 +41,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class ImportMessageLite : pb::GeneratedMessageLite<ImportMessageLite, ImportMessageLite.Builder> {
     private static readonly ImportMessageLite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _importMessageLiteFieldNames = new string[] { "d" };
@@ -155,7 +155,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilderLite<ImportMessageLite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffersLite.Test/TestProtos/UnitTestImportProtoFile.cs b/src/ProtocolBuffersLite.Test/TestProtos/UnitTestImportProtoFile.cs
index ac745a7fbd..5749c97f88 100644
--- a/src/ProtocolBuffersLite.Test/TestProtos/UnitTestImportProtoFile.cs
+++ b/src/ProtocolBuffersLite.Test/TestProtos/UnitTestImportProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestImportProtoFile {
   
     #region Extension registration
@@ -57,7 +57,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   }
   #region Enums
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public enum ImportEnum {
     IMPORT_FOO = 7,
     IMPORT_BAR = 8,
@@ -69,7 +69,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class ImportMessage : pb::GeneratedMessage<ImportMessage, ImportMessage.Builder> {
     private static readonly ImportMessage defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _importMessageFieldNames = new string[] { "d" };
@@ -174,7 +174,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<ImportMessage, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffersLite.Test/TestProtos/UnitTestLiteImportNonLiteProtoFile.cs b/src/ProtocolBuffersLite.Test/TestProtos/UnitTestLiteImportNonLiteProtoFile.cs
index f20647ee7c..7c2836cdb3 100644
--- a/src/ProtocolBuffersLite.Test/TestProtos/UnitTestLiteImportNonLiteProtoFile.cs
+++ b/src/ProtocolBuffersLite.Test/TestProtos/UnitTestLiteImportNonLiteProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestLiteImportNonLiteProtoFile {
   
     #region Extension registration
@@ -30,7 +30,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestLiteImportsNonlite : pb::GeneratedMessageLite<TestLiteImportsNonlite, TestLiteImportsNonlite.Builder> {
     private static readonly TestLiteImportsNonlite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testLiteImportsNonliteFieldNames = new string[] { "message" };
@@ -144,7 +144,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilderLite<TestLiteImportsNonlite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffersLite.Test/TestProtos/UnitTestLiteProtoFile.cs b/src/ProtocolBuffersLite.Test/TestProtos/UnitTestLiteProtoFile.cs
index cd09860072..78bed7e204 100644
--- a/src/ProtocolBuffersLite.Test/TestProtos/UnitTestLiteProtoFile.cs
+++ b/src/ProtocolBuffersLite.Test/TestProtos/UnitTestLiteProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestLiteProtoFile {
   
     #region Extension registration
@@ -1214,7 +1214,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   }
   #region Enums
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public enum ForeignEnumLite {
     FOREIGN_LITE_FOO = 4,
     FOREIGN_LITE_BAR = 5,
@@ -1226,7 +1226,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestAllTypesLite : pb::GeneratedMessageLite<TestAllTypesLite, TestAllTypesLite.Builder> {
     private static readonly TestAllTypesLite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testAllTypesLiteFieldNames = new string[] { "default_bool", "default_bytes", "default_cord", "default_double", "default_fixed32", "default_fixed64", "default_float", "default_foreign_enum", "default_import_enum", "default_int32", "default_int64", "default_nested_enum", "default_sfixed32", "default_sfixed64", "default_sint32", "default_sint64", "default_string", "default_string_piece", "default_uint32", "default_uint64", "optional_bool", "optional_bytes", "optional_cord", "optional_double", "optional_fixed32", "optional_fixed64", "optional_float", "optional_foreign_enum", "optional_foreign_message", "optional_import_enum", "optional_import_message", "optional_int32", "optional_int64", "optional_nested_enum", "optional_nested_message", "optional_sfixed32", "optional_sfixed64", "optional_sint32", "optional_sint64", "optional_string", "optional_string_piece", "optional_uint32", "optional_uint64", "optionalgroup", "repeated_bool", "repeated_bytes", "repeated_cord", "repeated_double", "repeated_fixed32", "repeated_fixed64", "repeated_float", "repeated_foreign_enum", "repeated_foreign_message", "repeated_import_enum", "repeated_import_message", "repeated_int32", "repeated_int64", "repeated_nested_enum", "repeated_nested_message", "repeated_sfixed32", "repeated_sfixed64", "repeated_sint32", "repeated_sint64", "repeated_string", "repeated_string_piece", "repeated_uint32", "repeated_uint64", "repeatedgroup" };
@@ -1246,10 +1246,10 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public enum NestedEnum {
         FOO = 1,
         BAR = 2,
@@ -1258,7 +1258,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class NestedMessage : pb::GeneratedMessageLite<NestedMessage, NestedMessage.Builder> {
         private static readonly NestedMessage defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _nestedMessageFieldNames = new string[] { "bb" };
@@ -1372,7 +1372,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilderLite<NestedMessage, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -1488,7 +1488,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class OptionalGroup : pb::GeneratedMessageLite<OptionalGroup, OptionalGroup.Builder> {
         private static readonly OptionalGroup defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _optionalGroupFieldNames = new string[] { "a" };
@@ -1602,7 +1602,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilderLite<OptionalGroup, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -1718,7 +1718,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class RepeatedGroup : pb::GeneratedMessageLite<RepeatedGroup, RepeatedGroup.Builder> {
         private static readonly RepeatedGroup defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _repeatedGroupFieldNames = new string[] { "a" };
@@ -1832,7 +1832,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilderLite<RepeatedGroup, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -3547,7 +3547,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilderLite<TestAllTypesLite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -5789,7 +5789,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class ForeignMessageLite : pb::GeneratedMessageLite<ForeignMessageLite, ForeignMessageLite.Builder> {
     private static readonly ForeignMessageLite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _foreignMessageLiteFieldNames = new string[] { "c" };
@@ -5903,7 +5903,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilderLite<ForeignMessageLite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -6019,7 +6019,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestPackedTypesLite : pb::GeneratedMessageLite<TestPackedTypesLite, TestPackedTypesLite.Builder> {
     private static readonly TestPackedTypesLite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testPackedTypesLiteFieldNames = new string[] { "packed_bool", "packed_double", "packed_enum", "packed_fixed32", "packed_fixed64", "packed_float", "packed_int32", "packed_int64", "packed_sfixed32", "packed_sfixed64", "packed_sint32", "packed_sint64", "packed_uint32", "packed_uint64" };
@@ -6571,7 +6571,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilderLite<TestPackedTypesLite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -7173,7 +7173,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestUnpackedTypesLite : pb::GeneratedMessageLite<TestUnpackedTypesLite, TestUnpackedTypesLite.Builder> {
     private static readonly TestUnpackedTypesLite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testUnpackedTypesLiteFieldNames = new string[] { "unpacked_bool", "unpacked_double", "unpacked_enum", "unpacked_fixed32", "unpacked_fixed64", "unpacked_float", "unpacked_int32", "unpacked_int64", "unpacked_sfixed32", "unpacked_sfixed64", "unpacked_sint32", "unpacked_sint64", "unpacked_uint32", "unpacked_uint64" };
@@ -7670,7 +7670,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilderLite<TestUnpackedTypesLite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -8272,7 +8272,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestAllExtensionsLite : pb::ExtendableMessageLite<TestAllExtensionsLite, TestAllExtensionsLite.Builder> {
     private static readonly TestAllExtensionsLite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testAllExtensionsLiteFieldNames = new string[] {  };
@@ -8374,7 +8374,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilderLite<TestAllExtensionsLite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -8466,7 +8466,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class OptionalGroup_extension_lite : pb::GeneratedMessageLite<OptionalGroup_extension_lite, OptionalGroup_extension_lite.Builder> {
     private static readonly OptionalGroup_extension_lite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _optionalGroupExtensionLiteFieldNames = new string[] { "a" };
@@ -8580,7 +8580,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilderLite<OptionalGroup_extension_lite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -8696,7 +8696,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class RepeatedGroup_extension_lite : pb::GeneratedMessageLite<RepeatedGroup_extension_lite, RepeatedGroup_extension_lite.Builder> {
     private static readonly RepeatedGroup_extension_lite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _repeatedGroupExtensionLiteFieldNames = new string[] { "a" };
@@ -8810,7 +8810,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilderLite<RepeatedGroup_extension_lite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -8926,7 +8926,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestPackedExtensionsLite : pb::ExtendableMessageLite<TestPackedExtensionsLite, TestPackedExtensionsLite.Builder> {
     private static readonly TestPackedExtensionsLite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testPackedExtensionsLiteFieldNames = new string[] {  };
@@ -9028,7 +9028,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilderLite<TestPackedExtensionsLite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -9120,7 +9120,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestUnpackedExtensionsLite : pb::ExtendableMessageLite<TestUnpackedExtensionsLite, TestUnpackedExtensionsLite.Builder> {
     private static readonly TestUnpackedExtensionsLite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testUnpackedExtensionsLiteFieldNames = new string[] {  };
@@ -9222,7 +9222,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilderLite<TestUnpackedExtensionsLite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -9314,7 +9314,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestNestedExtensionLite : pb::GeneratedMessageLite<TestNestedExtensionLite, TestNestedExtensionLite.Builder> {
     private static readonly TestNestedExtensionLite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testNestedExtensionLiteFieldNames = new string[] {  };
@@ -9411,7 +9411,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilderLite<TestNestedExtensionLite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -9502,7 +9502,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestDeprecatedLite : pb::GeneratedMessageLite<TestDeprecatedLite, TestDeprecatedLite.Builder> {
     private static readonly TestDeprecatedLite defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testDeprecatedLiteFieldNames = new string[] { "deprecated_field" };
@@ -9616,7 +9616,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilderLite<TestDeprecatedLite, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
diff --git a/src/ProtocolBuffersLite.Test/TestProtos/UnitTestProtoFile.cs b/src/ProtocolBuffersLite.Test/TestProtos/UnitTestProtoFile.cs
index f46ec30148..d8824d49a4 100644
--- a/src/ProtocolBuffersLite.Test/TestProtos/UnitTestProtoFile.cs
+++ b/src/ProtocolBuffersLite.Test/TestProtos/UnitTestProtoFile.cs
@@ -1,4 +1,4 @@
-// Generated by ProtoGen, Version=2.3.0.369, Culture=neutral, PublicKeyToken=55f7125234beb589.  DO NOT EDIT!
+// Generated by ProtoGen, Version=2.3.0.277, Culture=neutral, PublicKeyToken=17b3b1f090c3ea48.  DO NOT EDIT!
 #pragma warning disable 1591
 #region Designer generated code
 
@@ -10,7 +10,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public static partial class UnitTestProtoFile {
   
     #region Extension registration
@@ -1086,7 +1086,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   }
   #region Enums
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public enum ForeignEnum {
     FOREIGN_FOO = 4,
     FOREIGN_BAR = 5,
@@ -1094,7 +1094,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   }
   
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public enum TestEnumWithDupValue {
     FOO1 = 1,
     BAR1 = 2,
@@ -1104,7 +1104,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   }
   
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public enum TestSparseEnum {
     SPARSE_A = 123,
     SPARSE_B = 62374,
@@ -1120,7 +1120,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestAllTypes : pb::GeneratedMessage<TestAllTypes, TestAllTypes.Builder> {
     private static readonly TestAllTypes defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testAllTypesFieldNames = new string[] { "default_bool", "default_bytes", "default_cord", "default_double", "default_fixed32", "default_fixed64", "default_float", "default_foreign_enum", "default_import_enum", "default_int32", "default_int64", "default_nested_enum", "default_sfixed32", "default_sfixed64", "default_sint32", "default_sint64", "default_string", "default_string_piece", "default_uint32", "default_uint64", "optional_bool", "optional_bytes", "optional_cord", "optional_double", "optional_fixed32", "optional_fixed64", "optional_float", "optional_foreign_enum", "optional_foreign_message", "optional_import_enum", "optional_import_message", "optional_int32", "optional_int64", "optional_nested_enum", "optional_nested_message", "optional_sfixed32", "optional_sfixed64", "optional_sint32", "optional_sint64", "optional_string", "optional_string_piece", "optional_uint32", "optional_uint64", "optionalgroup", "repeated_bool", "repeated_bytes", "repeated_cord", "repeated_double", "repeated_fixed32", "repeated_fixed64", "repeated_float", "repeated_foreign_enum", "repeated_foreign_message", "repeated_import_enum", "repeated_import_message", "repeated_int32", "repeated_int64", "repeated_nested_enum", "repeated_nested_message", "repeated_sfixed32", "repeated_sfixed64", "repeated_sint32", "repeated_sint64", "repeated_string", "repeated_string_piece", "repeated_uint32", "repeated_uint64", "repeatedgroup" };
@@ -1148,10 +1148,10 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public enum NestedEnum {
         FOO = 1,
         BAR = 2,
@@ -1160,7 +1160,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class NestedMessage : pb::GeneratedMessage<NestedMessage, NestedMessage.Builder> {
         private static readonly NestedMessage defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _nestedMessageFieldNames = new string[] { "bb" };
@@ -1265,7 +1265,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<NestedMessage, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -1399,7 +1399,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class OptionalGroup : pb::GeneratedMessage<OptionalGroup, OptionalGroup.Builder> {
         private static readonly OptionalGroup defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _optionalGroupFieldNames = new string[] { "a" };
@@ -1504,7 +1504,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<OptionalGroup, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -1638,7 +1638,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class RepeatedGroup : pb::GeneratedMessage<RepeatedGroup, RepeatedGroup.Builder> {
         private static readonly RepeatedGroup defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _repeatedGroupFieldNames = new string[] { "a" };
@@ -1743,7 +1743,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<RepeatedGroup, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -3186,7 +3186,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestAllTypes, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -5494,7 +5494,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestDeprecatedFields : pb::GeneratedMessage<TestDeprecatedFields, TestDeprecatedFields.Builder> {
     private static readonly TestDeprecatedFields defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testDeprecatedFieldsFieldNames = new string[] { "deprecated_int32" };
@@ -5599,7 +5599,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestDeprecatedFields, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -5733,7 +5733,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class ForeignMessage : pb::GeneratedMessage<ForeignMessage, ForeignMessage.Builder> {
     private static readonly ForeignMessage defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _foreignMessageFieldNames = new string[] { "c" };
@@ -5838,7 +5838,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<ForeignMessage, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -5972,7 +5972,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestAllExtensions : pb::ExtendableMessage<TestAllExtensions, TestAllExtensions.Builder> {
     private static readonly TestAllExtensions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testAllExtensionsFieldNames = new string[] {  };
@@ -6065,7 +6065,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestAllExtensions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -6175,7 +6175,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class OptionalGroup_extension : pb::GeneratedMessage<OptionalGroup_extension, OptionalGroup_extension.Builder> {
     private static readonly OptionalGroup_extension defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _optionalGroupExtensionFieldNames = new string[] { "a" };
@@ -6280,7 +6280,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<OptionalGroup_extension, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -6414,7 +6414,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class RepeatedGroup_extension : pb::GeneratedMessage<RepeatedGroup_extension, RepeatedGroup_extension.Builder> {
     private static readonly RepeatedGroup_extension defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _repeatedGroupExtensionFieldNames = new string[] { "a" };
@@ -6519,7 +6519,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<RepeatedGroup_extension, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -6653,7 +6653,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestNestedExtension : pb::GeneratedMessage<TestNestedExtension, TestNestedExtension.Builder> {
     private static readonly TestNestedExtension defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testNestedExtensionFieldNames = new string[] {  };
@@ -6744,7 +6744,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestNestedExtension, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -6853,7 +6853,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestRequired : pb::GeneratedMessage<TestRequired, TestRequired.Builder> {
     private static readonly TestRequired defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testRequiredFieldNames = new string[] { "a", "b", "c", "dummy10", "dummy11", "dummy12", "dummy13", "dummy14", "dummy15", "dummy16", "dummy17", "dummy18", "dummy19", "dummy2", "dummy20", "dummy21", "dummy22", "dummy23", "dummy24", "dummy25", "dummy26", "dummy27", "dummy28", "dummy29", "dummy30", "dummy31", "dummy32", "dummy4", "dummy5", "dummy6", "dummy7", "dummy8", "dummy9" };
@@ -7477,7 +7477,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestRequired, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -8411,7 +8411,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestRequiredForeign : pb::GeneratedMessage<TestRequiredForeign, TestRequiredForeign.Builder> {
     private static readonly TestRequiredForeign defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testRequiredForeignFieldNames = new string[] { "dummy", "optional_message", "repeated_message" };
@@ -8556,7 +8556,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestRequiredForeign, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -8784,7 +8784,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestForeignNested : pb::GeneratedMessage<TestForeignNested, TestForeignNested.Builder> {
     private static readonly TestForeignNested defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testForeignNestedFieldNames = new string[] { "foreign_nested" };
@@ -8889,7 +8889,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestForeignNested, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -9046,7 +9046,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestEmptyMessage : pb::GeneratedMessage<TestEmptyMessage, TestEmptyMessage.Builder> {
     private static readonly TestEmptyMessage defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testEmptyMessageFieldNames = new string[] {  };
@@ -9135,7 +9135,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestEmptyMessage, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -9244,7 +9244,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestEmptyMessageWithExtensions : pb::ExtendableMessage<TestEmptyMessageWithExtensions, TestEmptyMessageWithExtensions.Builder> {
     private static readonly TestEmptyMessageWithExtensions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testEmptyMessageWithExtensionsFieldNames = new string[] {  };
@@ -9337,7 +9337,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestEmptyMessageWithExtensions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -9447,7 +9447,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestMultipleExtensionRanges : pb::ExtendableMessage<TestMultipleExtensionRanges, TestMultipleExtensionRanges.Builder> {
     private static readonly TestMultipleExtensionRanges defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testMultipleExtensionRangesFieldNames = new string[] {  };
@@ -9542,7 +9542,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestMultipleExtensionRanges, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -9652,7 +9652,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestReallyLargeTagNumber : pb::GeneratedMessage<TestReallyLargeTagNumber, TestReallyLargeTagNumber.Builder> {
     private static readonly TestReallyLargeTagNumber defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testReallyLargeTagNumberFieldNames = new string[] { "a", "bb" };
@@ -9773,7 +9773,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestReallyLargeTagNumber, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -9932,7 +9932,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestRecursiveMessage : pb::GeneratedMessage<TestRecursiveMessage, TestRecursiveMessage.Builder> {
     private static readonly TestRecursiveMessage defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testRecursiveMessageFieldNames = new string[] { "a", "i" };
@@ -10053,7 +10053,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestRecursiveMessage, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -10235,7 +10235,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestMutualRecursionA : pb::GeneratedMessage<TestMutualRecursionA, TestMutualRecursionA.Builder> {
     private static readonly TestMutualRecursionA defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testMutualRecursionAFieldNames = new string[] { "bb" };
@@ -10340,7 +10340,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestMutualRecursionA, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -10497,7 +10497,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestMutualRecursionB : pb::GeneratedMessage<TestMutualRecursionB, TestMutualRecursionB.Builder> {
     private static readonly TestMutualRecursionB defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testMutualRecursionBFieldNames = new string[] { "a", "optional_int32" };
@@ -10618,7 +10618,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestMutualRecursionB, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -10800,7 +10800,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestDupFieldNumber : pb::GeneratedMessage<TestDupFieldNumber, TestDupFieldNumber.Builder> {
     private static readonly TestDupFieldNumber defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testDupFieldNumberFieldNames = new string[] { "a", "bar", "foo" };
@@ -10828,11 +10828,11 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class Foo : pb::GeneratedMessage<Foo, Foo.Builder> {
         private static readonly Foo defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _fooFieldNames = new string[] { "a" };
@@ -10937,7 +10937,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<Foo, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -11071,7 +11071,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class Bar : pb::GeneratedMessage<Bar, Bar.Builder> {
         private static readonly Bar defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _barFieldNames = new string[] { "a" };
@@ -11176,7 +11176,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<Bar, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -11423,7 +11423,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestDupFieldNumber, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -11653,7 +11653,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestNestedMessageHasBits : pb::GeneratedMessage<TestNestedMessageHasBits, TestNestedMessageHasBits.Builder> {
     private static readonly TestNestedMessageHasBits defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testNestedMessageHasBitsFieldNames = new string[] { "optional_nested_message" };
@@ -11681,11 +11681,11 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class NestedMessage : pb::GeneratedMessage<NestedMessage, NestedMessage.Builder> {
         private static readonly NestedMessage defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _nestedMessageFieldNames = new string[] { "nestedmessage_repeated_foreignmessage", "nestedmessage_repeated_int32" };
@@ -11815,7 +11815,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<NestedMessage, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -12086,7 +12086,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestNestedMessageHasBits, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -12243,7 +12243,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestCamelCaseFieldNames : pb::GeneratedMessage<TestCamelCaseFieldNames, TestCamelCaseFieldNames.Builder> {
     private static readonly TestCamelCaseFieldNames defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testCamelCaseFieldNamesFieldNames = new string[] { "CordField", "EnumField", "MessageField", "PrimitiveField", "RepeatedCordField", "RepeatedEnumField", "RepeatedMessageField", "RepeatedPrimitiveField", "RepeatedStringField", "RepeatedStringPieceField", "StringField", "StringPieceField" };
@@ -12563,7 +12563,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestCamelCaseFieldNames, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -13089,7 +13089,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestFieldOrderings : pb::ExtendableMessage<TestFieldOrderings, TestFieldOrderings.Builder> {
     private static readonly TestFieldOrderings defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testFieldOrderingsFieldNames = new string[] { "my_float", "my_int", "my_string" };
@@ -13231,7 +13231,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestFieldOrderings, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -13417,7 +13417,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestExtremeDefaultValues : pb::GeneratedMessage<TestExtremeDefaultValues, TestExtremeDefaultValues.Builder> {
     private static readonly TestExtremeDefaultValues defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testExtremeDefaultValuesFieldNames = new string[] { "escaped_bytes", "inf_double", "inf_float", "large_float", "large_uint32", "large_uint64", "nan_double", "nan_float", "neg_inf_double", "neg_inf_float", "negative_float", "negative_one_float", "one_float", "small_float", "small_int32", "small_int64", "small_negative_float", "utf8_string", "zero_float" };
@@ -13812,7 +13812,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestExtremeDefaultValues, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -14402,7 +14402,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class OneString : pb::GeneratedMessage<OneString, OneString.Builder> {
     private static readonly OneString defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _oneStringFieldNames = new string[] { "data" };
@@ -14507,7 +14507,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<OneString, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -14642,7 +14642,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class OneBytes : pb::GeneratedMessage<OneBytes, OneBytes.Builder> {
     private static readonly OneBytes defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _oneBytesFieldNames = new string[] { "data" };
@@ -14747,7 +14747,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<OneBytes, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -14882,7 +14882,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestPackedTypes : pb::GeneratedMessage<TestPackedTypes, TestPackedTypes.Builder> {
     private static readonly TestPackedTypes defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testPackedTypesFieldNames = new string[] { "packed_bool", "packed_double", "packed_enum", "packed_fixed32", "packed_fixed64", "packed_float", "packed_int32", "packed_int64", "packed_sfixed32", "packed_sfixed64", "packed_sint32", "packed_sint64", "packed_uint32", "packed_uint64" };
@@ -15344,7 +15344,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestPackedTypes, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -15972,7 +15972,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestUnpackedTypes : pb::GeneratedMessage<TestUnpackedTypes, TestUnpackedTypes.Builder> {
     private static readonly TestUnpackedTypes defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testUnpackedTypesFieldNames = new string[] { "unpacked_bool", "unpacked_double", "unpacked_enum", "unpacked_fixed32", "unpacked_fixed64", "unpacked_float", "unpacked_int32", "unpacked_int64", "unpacked_sfixed32", "unpacked_sfixed64", "unpacked_sint32", "unpacked_sint64", "unpacked_uint32", "unpacked_uint64" };
@@ -16379,7 +16379,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestUnpackedTypes, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -17007,7 +17007,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestPackedExtensions : pb::ExtendableMessage<TestPackedExtensions, TestPackedExtensions.Builder> {
     private static readonly TestPackedExtensions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testPackedExtensionsFieldNames = new string[] {  };
@@ -17100,7 +17100,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestPackedExtensions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -17210,7 +17210,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestUnpackedExtensions : pb::ExtendableMessage<TestUnpackedExtensions, TestUnpackedExtensions.Builder> {
     private static readonly TestUnpackedExtensions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testUnpackedExtensionsFieldNames = new string[] {  };
@@ -17303,7 +17303,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::ExtendableBuilder<TestUnpackedExtensions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -17413,7 +17413,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestDynamicExtensions : pb::GeneratedMessage<TestDynamicExtensions, TestDynamicExtensions.Builder> {
     private static readonly TestDynamicExtensions defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testDynamicExtensionsFieldNames = new string[] { "dynamic_enum_extension", "dynamic_message_extension", "enum_extension", "message_extension", "packed_extension", "repeated_extension", "scalar_extension" };
@@ -17441,10 +17441,10 @@ namespace Google.ProtocolBuffers.TestProtos {
     #region Nested types
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public static class Types {
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public enum DynamicEnumType {
         DYNAMIC_FOO = 2200,
         DYNAMIC_BAR = 2201,
@@ -17453,7 +17453,7 @@ namespace Google.ProtocolBuffers.TestProtos {
       
       [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
       [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+      [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
       public sealed partial class DynamicMessageType : pb::GeneratedMessage<DynamicMessageType, DynamicMessageType.Builder> {
         private static readonly DynamicMessageType defaultInstance = new Builder().BuildPartial();
         private static readonly string[] _dynamicMessageTypeFieldNames = new string[] { "dynamic_field" };
@@ -17558,7 +17558,7 @@ namespace Google.ProtocolBuffers.TestProtos {
         
         [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
         [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+        [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
         public sealed partial class Builder : pb::GeneratedBuilder<DynamicMessageType, Builder> {
           protected override Builder ThisBuilder {
             get { return this; }
@@ -17888,7 +17888,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestDynamicExtensions, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -18257,7 +18257,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class TestRepeatedScalarDifferentTagSizes : pb::GeneratedMessage<TestRepeatedScalarDifferentTagSizes, TestRepeatedScalarDifferentTagSizes.Builder> {
     private static readonly TestRepeatedScalarDifferentTagSizes defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _testRepeatedScalarDifferentTagSizesFieldNames = new string[] { "repeated_fixed32", "repeated_fixed64", "repeated_float", "repeated_int32", "repeated_int64", "repeated_uint64" };
@@ -18484,7 +18484,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<TestRepeatedScalarDifferentTagSizes, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -18818,7 +18818,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class FooRequest : pb::GeneratedMessage<FooRequest, FooRequest.Builder> {
     private static readonly FooRequest defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _fooRequestFieldNames = new string[] {  };
@@ -18907,7 +18907,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<FooRequest, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -19016,7 +19016,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class FooResponse : pb::GeneratedMessage<FooResponse, FooResponse.Builder> {
     private static readonly FooResponse defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _fooResponseFieldNames = new string[] {  };
@@ -19105,7 +19105,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<FooResponse, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -19214,7 +19214,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class BarRequest : pb::GeneratedMessage<BarRequest, BarRequest.Builder> {
     private static readonly BarRequest defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _barRequestFieldNames = new string[] {  };
@@ -19303,7 +19303,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<BarRequest, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }
@@ -19412,7 +19412,7 @@ namespace Google.ProtocolBuffers.TestProtos {
   
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+  [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
   public sealed partial class BarResponse : pb::GeneratedMessage<BarResponse, BarResponse.Builder> {
     private static readonly BarResponse defaultInstance = new Builder().BuildPartial();
     private static readonly string[] _barResponseFieldNames = new string[] {  };
@@ -19501,7 +19501,7 @@ namespace Google.ProtocolBuffers.TestProtos {
     
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.369")]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("ProtoGen", "2.3.0.277")]
     public sealed partial class Builder : pb::GeneratedBuilder<BarResponse, Builder> {
       protected override Builder ThisBuilder {
         get { return this; }