diff --git a/src/google/protobuf/any.pb.cc b/src/google/protobuf/any.pb.cc
index 022abe0017..24efc52afc 100644
--- a/src/google/protobuf/any.pb.cc
+++ b/src/google/protobuf/any.pb.cc
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/any.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/any.pb.h b/src/google/protobuf/any.pb.h
index 608483087e..0176c73f1d 100644
--- a/src/google/protobuf/any.pb.h
+++ b/src/google/protobuf/any.pb.h
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/any.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/api.pb.cc b/src/google/protobuf/api.pb.cc
index c96c57f3e2..f6b3dab98f 100644
--- a/src/google/protobuf/api.pb.cc
+++ b/src/google/protobuf/api.pb.cc
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/api.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/api.pb.h b/src/google/protobuf/api.pb.h
index 38a317cbed..7e55dea31d 100644
--- a/src/google/protobuf/api.pb.h
+++ b/src/google/protobuf/api.pb.h
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/api.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/duration.pb.cc b/src/google/protobuf/duration.pb.cc
index 589ea43c73..3c179897b5 100644
--- a/src/google/protobuf/duration.pb.cc
+++ b/src/google/protobuf/duration.pb.cc
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/duration.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/duration.pb.h b/src/google/protobuf/duration.pb.h
index b40aa353fe..c25f473b25 100644
--- a/src/google/protobuf/duration.pb.h
+++ b/src/google/protobuf/duration.pb.h
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/duration.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/empty.pb.cc b/src/google/protobuf/empty.pb.cc
index 17534eef69..16efefdd0d 100644
--- a/src/google/protobuf/empty.pb.cc
+++ b/src/google/protobuf/empty.pb.cc
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/empty.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/empty.pb.h b/src/google/protobuf/empty.pb.h
index 17b4a846f3..b1c231ec30 100644
--- a/src/google/protobuf/empty.pb.h
+++ b/src/google/protobuf/empty.pb.h
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/empty.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/field_mask.pb.cc b/src/google/protobuf/field_mask.pb.cc
index dd3fc50cf0..ccc47a92d4 100644
--- a/src/google/protobuf/field_mask.pb.cc
+++ b/src/google/protobuf/field_mask.pb.cc
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/field_mask.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/field_mask.pb.h b/src/google/protobuf/field_mask.pb.h
index 86eaf9db94..25b3828a4d 100644
--- a/src/google/protobuf/field_mask.pb.h
+++ b/src/google/protobuf/field_mask.pb.h
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/field_mask.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/source_context.pb.cc b/src/google/protobuf/source_context.pb.cc
index c00d6d4145..cbb03d53c1 100644
--- a/src/google/protobuf/source_context.pb.cc
+++ b/src/google/protobuf/source_context.pb.cc
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/source_context.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/source_context.pb.h b/src/google/protobuf/source_context.pb.h
index 790a9c88ea..3621b1e4fd 100644
--- a/src/google/protobuf/source_context.pb.h
+++ b/src/google/protobuf/source_context.pb.h
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/source_context.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/struct.pb.cc b/src/google/protobuf/struct.pb.cc
index c266e7473c..b27f1b570c 100644
--- a/src/google/protobuf/struct.pb.cc
+++ b/src/google/protobuf/struct.pb.cc
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/struct.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/struct.pb.h b/src/google/protobuf/struct.pb.h
index 6e82a77f69..2dfeeca858 100644
--- a/src/google/protobuf/struct.pb.h
+++ b/src/google/protobuf/struct.pb.h
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/struct.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/timestamp.pb.cc b/src/google/protobuf/timestamp.pb.cc
index 29f519d172..0ebdfb65ab 100644
--- a/src/google/protobuf/timestamp.pb.cc
+++ b/src/google/protobuf/timestamp.pb.cc
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/timestamp.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/timestamp.pb.h b/src/google/protobuf/timestamp.pb.h
index 7364198e09..71a474843a 100644
--- a/src/google/protobuf/timestamp.pb.h
+++ b/src/google/protobuf/timestamp.pb.h
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/timestamp.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/type.pb.cc b/src/google/protobuf/type.pb.cc
index 6efd86c135..7e2c669458 100644
--- a/src/google/protobuf/type.pb.cc
+++ b/src/google/protobuf/type.pb.cc
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/type.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/type.pb.h b/src/google/protobuf/type.pb.h
index b325dba241..802f93859f 100644
--- a/src/google/protobuf/type.pb.h
+++ b/src/google/protobuf/type.pb.h
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/type.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/wrappers.pb.cc b/src/google/protobuf/wrappers.pb.cc
index a2c663a70a..fd2b0eb189 100644
--- a/src/google/protobuf/wrappers.pb.cc
+++ b/src/google/protobuf/wrappers.pb.cc
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/wrappers.proto
 // Protobuf C++ Version: 5.27.0-dev
 
diff --git a/src/google/protobuf/wrappers.pb.h b/src/google/protobuf/wrappers.pb.h
index 354e319eb5..245839cacd 100644
--- a/src/google/protobuf/wrappers.pb.h
+++ b/src/google/protobuf/wrappers.pb.h
@@ -1,4 +1,5 @@
-// Generated by the protocol buffer compiler.  DO NOT EDIT! DO NOT SUBMIT!
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/wrappers.proto
 // Protobuf C++ Version: 5.27.0-dev