diff --git a/BUILD b/BUILD
index 81b891d22b6..40770c0ce08 100644
--- a/BUILD
+++ b/BUILD
@@ -80,11 +80,11 @@ config_setting(
 python_config_settings()
 
 # This should be updated along with build_handwritten.yaml
-g_stands_for = "gecko"
+g_stands_for = "gummybear"
 
-core_version = "14.0.0"
+core_version = "15.0.0"
 
-version = "1.35.0-dev"
+version = "1.36.0-dev"
 
 GPR_PUBLIC_HDRS = [
     "include/grpc/support/alloc.h",
diff --git a/build_handwritten.yaml b/build_handwritten.yaml
index a0c05180062..3993ecc4c7c 100644
--- a/build_handwritten.yaml
+++ b/build_handwritten.yaml
@@ -12,11 +12,11 @@ settings:
   '#08': Use "-preN" suffixes to identify pre-release versions
   '#09': Per-language overrides are possible with (eg) ruby_version tag here
   '#10': See the expand_version.py for all the quirks here
-  core_version: 14.0.0
+  core_version: 15.0.0
   csharp_major_version: 2
-  g_stands_for: gecko
+  g_stands_for: gummybear
   protobuf_version: 3.13.0
-  version: 1.35.0-dev
+  version: 1.36.0-dev
 targets:
 - name: check_epollexclusive
   build: tool
diff --git a/doc/g_stands_for.md b/doc/g_stands_for.md
index b004f52550b..6c19300fd0b 100644
--- a/doc/g_stands_for.md
+++ b/doc/g_stands_for.md
@@ -34,4 +34,5 @@
 - 1.32 'g' stands for ['giggle'](https://github.com/grpc/grpc/tree/v1.32.x)
 - 1.33 'g' stands for ['geeky'](https://github.com/grpc/grpc/tree/v1.33.x)
 - 1.34 'g' stands for ['gauntlet'](https://github.com/grpc/grpc/tree/v1.34.x)
-- 1.35 'g' stands for ['gecko'](https://github.com/grpc/grpc/tree/master)
+- 1.35 'g' stands for ['gecko'](https://github.com/grpc/grpc/tree/v1.35.x)
+- 1.36 'g' stands for ['gummybear'](https://github.com/grpc/grpc/tree/master)