diff --git a/CMakeLists.txt b/CMakeLists.txt
index a92eaa77a6ce..68ce1a52e266 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -84,7 +84,7 @@ if (protobuf_BUILD_SHARED_LIBS)
 endif ()
 
 # Version metadata
-set(protobuf_VERSION_STRING "5.28.0-rc-3")
+set(protobuf_VERSION_STRING "5.28.0")
 set(protobuf_DESCRIPTION "Protocol Buffers")
 set(protobuf_CONTACT "protobuf@googlegroups.com")
 
diff --git a/MODULE.bazel b/MODULE.bazel
index fb3065230bbe..a59a2de4fb79 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -3,7 +3,7 @@
 
 module(
     name = "protobuf",
-    version = "28.0-rc3", # Automatically updated on release
+    version = "28.0-dev", # Automatically updated on release
     compatibility_level = 1,
     repo_name = "com_google_protobuf",
 )
diff --git a/Protobuf-C++.podspec b/Protobuf-C++.podspec
index 7493bef74cec..51e90cd9bd5d 100644
--- a/Protobuf-C++.podspec
+++ b/Protobuf-C++.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name     = 'Protobuf-C++'
-  s.version  = '5.28.0-rc3'
+  s.version  = '5.28.0'
   s.summary  = 'Protocol Buffers v3 runtime library for C++.'
   s.homepage = 'https://github.com/google/protobuf'
   s.license  = 'BSD-3-Clause'
diff --git a/Protobuf.podspec b/Protobuf.podspec
index 0414fcb1b45e..3a53918e76bf 100644
--- a/Protobuf.podspec
+++ b/Protobuf.podspec
@@ -5,7 +5,7 @@
 # dependent projects use the :git notation to refer to the library.
 Pod::Spec.new do |s|
   s.name     = 'Protobuf'
-  s.version  = '3.28.0-rc3'
+  s.version  = '3.28.0'
   s.summary  = 'Protocol Buffers v.3 runtime library for Objective-C.'
   s.homepage = 'https://github.com/protocolbuffers/protobuf'
   s.license  = 'BSD-3-Clause'
diff --git a/csharp/Google.Protobuf.Tools.nuspec b/csharp/Google.Protobuf.Tools.nuspec
index 5b3926f205fb..08091d76fc8b 100644
--- a/csharp/Google.Protobuf.Tools.nuspec
+++ b/csharp/Google.Protobuf.Tools.nuspec
@@ -5,7 +5,7 @@
     <title>Google Protocol Buffers tools</title>
     <summary>Tools for Protocol Buffers - Google's data interchange format.</summary>
     <description>See project site for more info.</description>
-    <version>3.28.0-rc3</version>
+    <version>3.28.0</version>
     <authors>Google Inc.</authors>
     <owners>protobuf-packages</owners>
     <licenseUrl>https://github.com/protocolbuffers/protobuf/blob/main/LICENSE</licenseUrl>
diff --git a/csharp/src/Google.Protobuf/Google.Protobuf.csproj b/csharp/src/Google.Protobuf/Google.Protobuf.csproj
index 3a1629f5b4a3..394a0af84167 100644
--- a/csharp/src/Google.Protobuf/Google.Protobuf.csproj
+++ b/csharp/src/Google.Protobuf/Google.Protobuf.csproj
@@ -5,7 +5,7 @@
     <Description>C# runtime library for Protocol Buffers - Google's data interchange format.</Description>
     <Copyright>Copyright 2015, Google Inc.</Copyright>
     <AssemblyTitle>Google Protocol Buffers</AssemblyTitle>
-    <VersionPrefix>3.28.0-rc3</VersionPrefix>
+    <VersionPrefix>3.28.0</VersionPrefix>
     <LangVersion>10.0</LangVersion>
     <Authors>Google Inc.</Authors>
     <TargetFrameworks>netstandard1.1;netstandard2.0;net45;net50</TargetFrameworks>
diff --git a/java/bom/pom.xml b/java/bom/pom.xml
index c5dcd761070e..e69e5e380899 100644
--- a/java/bom/pom.xml
+++ b/java/bom/pom.xml
@@ -4,7 +4,7 @@
 
   <groupId>com.google.protobuf</groupId>
   <artifactId>protobuf-bom</artifactId>
-  <version>4.28.0-RC3</version>
+  <version>4.28.0</version>
   <packaging>pom</packaging>
 
   <name>Protocol Buffers [BOM]</name>
diff --git a/java/core/src/main/java/com/google/protobuf/RuntimeVersion.java b/java/core/src/main/java/com/google/protobuf/RuntimeVersion.java
index 5f77e1624544..b0f5e81a59dd 100644
--- a/java/core/src/main/java/com/google/protobuf/RuntimeVersion.java
+++ b/java/core/src/main/java/com/google/protobuf/RuntimeVersion.java
@@ -29,7 +29,7 @@ public enum RuntimeDomain {
   public static final int OSS_MAJOR = 4;
   public static final int OSS_MINOR = 28;
   public static final int OSS_PATCH = 0;
-  public static final String OSS_SUFFIX = "-rc3";
+  public static final String OSS_SUFFIX = "-dev";
 
   public static final RuntimeDomain DOMAIN = OSS_DOMAIN;
   public static final int MAJOR = OSS_MAJOR;
diff --git a/java/kotlin/pom.xml b/java/kotlin/pom.xml
index a4d1b88715f8..bf415f8f0cf6 100644
--- a/java/kotlin/pom.xml
+++ b/java/kotlin/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protobuf-parent</artifactId>
-    <version>4.28.0-RC3</version>
+    <version>4.28.0</version>
   </parent>
 
   <artifactId>protobuf-kotlin</artifactId>
diff --git a/java/pom.xml b/java/pom.xml
index a848f67c8f40..3e9e73d2ab36 100644
--- a/java/pom.xml
+++ b/java/pom.xml
@@ -4,7 +4,7 @@
 
   <groupId>com.google.protobuf</groupId>
   <artifactId>protobuf-parent</artifactId>
-  <version>4.28.0-RC3</version>
+  <version>4.28.0</version>
   <packaging>pom</packaging>
 
   <name>Protocol Buffers [Parent]</name>
diff --git a/java/protoc/pom.xml b/java/protoc/pom.xml
index 985718060fbd..fc2faab320f3 100644
--- a/java/protoc/pom.xml
+++ b/java/protoc/pom.xml
@@ -8,7 +8,7 @@
   </parent>
   <groupId>com.google.protobuf</groupId>
   <artifactId>protoc</artifactId>
-  <version>4.28.0-RC3</version>
+  <version>4.28.0</version>
   <packaging>pom</packaging>
   <name>Protobuf Compiler</name>
   <description>
diff --git a/php/ext/google/protobuf/protobuf.h b/php/ext/google/protobuf/protobuf.h
index 2484234be6b0..009baea86700 100644
--- a/php/ext/google/protobuf/protobuf.h
+++ b/php/ext/google/protobuf/protobuf.h
@@ -32,7 +32,7 @@ ZEND_BEGIN_ARG_INFO_EX(arginfo_setter, 0, 0, 1)
 ZEND_ARG_INFO(0, value)
 ZEND_END_ARG_INFO()
 
-#define PHP_PROTOBUF_VERSION "4.28.0RC3"
+#define PHP_PROTOBUF_VERSION "4.28.0"
 
 // ptr -> PHP object cache. This is a weak map that caches lazily-created
 // wrapper objects around upb types:
diff --git a/protobuf_version.bzl b/protobuf_version.bzl
index 2c5a13112733..bc33e8c0f37b 100644
--- a/protobuf_version.bzl
+++ b/protobuf_version.bzl
@@ -1,6 +1,6 @@
 """ Contains version numbers to be used in other bzl files """
-PROTOC_VERSION = "28.0-rc-3"
-PROTOBUF_JAVA_VERSION = "4.28.0-RC3"
-PROTOBUF_PYTHON_VERSION = "5.28.0rc3"
-PROTOBUF_PHP_VERSION = "4.28.0RC3"
-PROTOBUF_RUBY_VERSION = "4.28.0.rc.3"
+PROTOC_VERSION = "28.0"
+PROTOBUF_JAVA_VERSION = "4.28.0"
+PROTOBUF_PYTHON_VERSION = "5.28.0"
+PROTOBUF_PHP_VERSION = "4.28.0"
+PROTOBUF_RUBY_VERSION = "4.28.0"
diff --git a/python/google/protobuf/__init__.py b/python/google/protobuf/__init__.py
index 4445a68a563a..42bcd440b5c1 100755
--- a/python/google/protobuf/__init__.py
+++ b/python/google/protobuf/__init__.py
@@ -7,4 +7,4 @@
 
 # Copyright 2007 Google Inc. All Rights Reserved.
 
-__version__ = '5.28.0rc3'
+__version__ = '5.28.0'
diff --git a/python/google/protobuf/runtime_version.py b/python/google/protobuf/runtime_version.py
index efbb1f57a221..d8325fb71b25 100644
--- a/python/google/protobuf/runtime_version.py
+++ b/python/google/protobuf/runtime_version.py
@@ -30,7 +30,7 @@ class Domain(Enum):
 OSS_MAJOR = 5
 OSS_MINOR = 28
 OSS_PATCH = 0
-OSS_SUFFIX = '-rc3'
+OSS_SUFFIX = '-dev'
 
 DOMAIN = OSS_DOMAIN
 MAJOR = OSS_MAJOR
diff --git a/ruby/google-protobuf.gemspec b/ruby/google-protobuf.gemspec
index 17ff9ea1a338..3a0b6211ff6f 100644
--- a/ruby/google-protobuf.gemspec
+++ b/ruby/google-protobuf.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name        = "google-protobuf"
-  s.version     = "4.28.0.rc.3"
+  s.version     = "4.28.0"
   git_tag       = "v#{s.version.to_s.sub('.rc.', '-rc')}" # Converts X.Y.Z.rc.N to vX.Y.Z-rcN, used for the git tag
   s.licenses    = ["BSD-3-Clause"]
   s.summary     = "Protocol Buffers"
diff --git a/ruby/pom.xml b/ruby/pom.xml
index 113a5c21e274..20bffea5584b 100644
--- a/ruby/pom.xml
+++ b/ruby/pom.xml
@@ -9,7 +9,7 @@
 
     <groupId>com.google.protobuf.jruby</groupId>
     <artifactId>protobuf-jruby</artifactId>
-    <version>4.28.0-RC3</version>
+    <version>4.28.0</version>
     <name>Protocol Buffer JRuby native extension</name>
     <description>
       Protocol Buffers are a way of encoding structured data in an efficient yet
@@ -76,7 +76,7 @@
         <dependency>
           <groupId>com.google.protobuf</groupId>
           <artifactId>protobuf-java-util</artifactId>
-          <version>4.28.0-RC3</version>
+          <version>4.28.0</version>
         </dependency>
         <dependency>
             <groupId>org.jruby</groupId>
diff --git a/src/google/protobuf/any.pb.cc b/src/google/protobuf/any.pb.cc
index a0eb2e29613d..452c367768b0 100644
--- a/src/google/protobuf/any.pb.cc
+++ b/src/google/protobuf/any.pb.cc
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/any.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #include "google/protobuf/any.pb.h"
 
diff --git a/src/google/protobuf/any.pb.h b/src/google/protobuf/any.pb.h
index a8686c0cbb92..9dc72a0dbfb3 100644
--- a/src/google/protobuf/any.pb.h
+++ b/src/google/protobuf/any.pb.h
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/any.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #ifndef GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fany_2eproto_2epb_2eh
 #define GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fany_2eproto_2epb_2eh
diff --git a/src/google/protobuf/api.pb.cc b/src/google/protobuf/api.pb.cc
index 5c8784481322..0d3539808813 100644
--- a/src/google/protobuf/api.pb.cc
+++ b/src/google/protobuf/api.pb.cc
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/api.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #include "google/protobuf/api.pb.h"
 
diff --git a/src/google/protobuf/api.pb.h b/src/google/protobuf/api.pb.h
index 6b2b9cd140fb..afa747e76bf4 100644
--- a/src/google/protobuf/api.pb.h
+++ b/src/google/protobuf/api.pb.h
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/api.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #ifndef GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fapi_2eproto_2epb_2eh
 #define GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fapi_2eproto_2epb_2eh
diff --git a/src/google/protobuf/compiler/java/java_features.pb.cc b/src/google/protobuf/compiler/java/java_features.pb.cc
index 2f15574d2344..b292f00f4bdb 100644
--- a/src/google/protobuf/compiler/java/java_features.pb.cc
+++ b/src/google/protobuf/compiler/java/java_features.pb.cc
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/compiler/java/java_features.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #include "google/protobuf/compiler/java/java_features.pb.h"
 
diff --git a/src/google/protobuf/compiler/java/java_features.pb.h b/src/google/protobuf/compiler/java/java_features.pb.h
index c0fb31dfb1ce..50bc2acb4fa9 100644
--- a/src/google/protobuf/compiler/java/java_features.pb.h
+++ b/src/google/protobuf/compiler/java/java_features.pb.h
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/compiler/java/java_features.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #ifndef GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fcompiler_2fjava_2fjava_5ffeatures_2eproto_2epb_2eh
 #define GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fcompiler_2fjava_2fjava_5ffeatures_2eproto_2epb_2eh
diff --git a/src/google/protobuf/compiler/plugin.pb.cc b/src/google/protobuf/compiler/plugin.pb.cc
index c35b79f89431..3320a3bd6d2e 100644
--- a/src/google/protobuf/compiler/plugin.pb.cc
+++ b/src/google/protobuf/compiler/plugin.pb.cc
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/compiler/plugin.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #include "google/protobuf/compiler/plugin.pb.h"
 
diff --git a/src/google/protobuf/compiler/plugin.pb.h b/src/google/protobuf/compiler/plugin.pb.h
index b1305b8670b7..3ffa5ff739d2 100644
--- a/src/google/protobuf/compiler/plugin.pb.h
+++ b/src/google/protobuf/compiler/plugin.pb.h
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/compiler/plugin.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #ifndef GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fcompiler_2fplugin_2eproto_2epb_2eh
 #define GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fcompiler_2fplugin_2eproto_2epb_2eh
diff --git a/src/google/protobuf/compiler/versions.h b/src/google/protobuf/compiler/versions.h
index db5113034399..dfa543d46f65 100644
--- a/src/google/protobuf/compiler/versions.h
+++ b/src/google/protobuf/compiler/versions.h
@@ -53,9 +53,9 @@
 //
 // Please avoid changing them manually, as they should be updated automatically
 // by Protobuf release process.
-#define PROTOBUF_CPP_VERSION_STRING "5.28.0-rc3"
-#define PROTOBUF_JAVA_VERSION_STRING "4.28.0-rc3"
-#define PROTOBUF_PYTHON_VERSION_STRING "5.28.0-rc3"
+#define PROTOBUF_CPP_VERSION_STRING "5.28.0-dev"
+#define PROTOBUF_JAVA_VERSION_STRING "4.28.0-dev"
+#define PROTOBUF_PYTHON_VERSION_STRING "5.28.0-dev"
 
 
 namespace google {
diff --git a/src/google/protobuf/cpp_features.pb.cc b/src/google/protobuf/cpp_features.pb.cc
index 6819d4525f97..037da6bd20d1 100644
--- a/src/google/protobuf/cpp_features.pb.cc
+++ b/src/google/protobuf/cpp_features.pb.cc
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/cpp_features.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #include "google/protobuf/cpp_features.pb.h"
 
diff --git a/src/google/protobuf/cpp_features.pb.h b/src/google/protobuf/cpp_features.pb.h
index d1c3c0ee9fb8..180a90d55c13 100644
--- a/src/google/protobuf/cpp_features.pb.h
+++ b/src/google/protobuf/cpp_features.pb.h
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/cpp_features.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #ifndef GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fcpp_5ffeatures_2eproto_2epb_2eh
 #define GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fcpp_5ffeatures_2eproto_2epb_2eh
diff --git a/src/google/protobuf/descriptor.pb.cc b/src/google/protobuf/descriptor.pb.cc
index f704b65f5038..d934fd2d0ff1 100644
--- a/src/google/protobuf/descriptor.pb.cc
+++ b/src/google/protobuf/descriptor.pb.cc
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/descriptor.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #include "google/protobuf/descriptor.pb.h"
 
diff --git a/src/google/protobuf/descriptor.pb.h b/src/google/protobuf/descriptor.pb.h
index 51aa77b7b000..3c0071091869 100644
--- a/src/google/protobuf/descriptor.pb.h
+++ b/src/google/protobuf/descriptor.pb.h
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/descriptor.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #ifndef GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fdescriptor_2eproto_2epb_2eh
 #define GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fdescriptor_2eproto_2epb_2eh
diff --git a/src/google/protobuf/duration.pb.cc b/src/google/protobuf/duration.pb.cc
index 8de0de64957c..db186b229a3c 100644
--- a/src/google/protobuf/duration.pb.cc
+++ b/src/google/protobuf/duration.pb.cc
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/duration.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #include "google/protobuf/duration.pb.h"
 
diff --git a/src/google/protobuf/duration.pb.h b/src/google/protobuf/duration.pb.h
index fcdb365eb6ac..569c9d87226e 100644
--- a/src/google/protobuf/duration.pb.h
+++ b/src/google/protobuf/duration.pb.h
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/duration.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #ifndef GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fduration_2eproto_2epb_2eh
 #define GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fduration_2eproto_2epb_2eh
diff --git a/src/google/protobuf/empty.pb.cc b/src/google/protobuf/empty.pb.cc
index 2b3617e33b84..2331e4164eed 100644
--- a/src/google/protobuf/empty.pb.cc
+++ b/src/google/protobuf/empty.pb.cc
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/empty.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #include "google/protobuf/empty.pb.h"
 
diff --git a/src/google/protobuf/empty.pb.h b/src/google/protobuf/empty.pb.h
index 89f3c02dbd1b..9a6f767c9c6d 100644
--- a/src/google/protobuf/empty.pb.h
+++ b/src/google/protobuf/empty.pb.h
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/empty.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #ifndef GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fempty_2eproto_2epb_2eh
 #define GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fempty_2eproto_2epb_2eh
diff --git a/src/google/protobuf/field_mask.pb.cc b/src/google/protobuf/field_mask.pb.cc
index ad77818c91a7..4ed647c52bcb 100644
--- a/src/google/protobuf/field_mask.pb.cc
+++ b/src/google/protobuf/field_mask.pb.cc
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/field_mask.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #include "google/protobuf/field_mask.pb.h"
 
diff --git a/src/google/protobuf/field_mask.pb.h b/src/google/protobuf/field_mask.pb.h
index d981dc68ba3e..41fbf7a00f50 100644
--- a/src/google/protobuf/field_mask.pb.h
+++ b/src/google/protobuf/field_mask.pb.h
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/field_mask.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #ifndef GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2ffield_5fmask_2eproto_2epb_2eh
 #define GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2ffield_5fmask_2eproto_2epb_2eh
diff --git a/src/google/protobuf/runtime_version.h b/src/google/protobuf/runtime_version.h
index 876d7773e618..9244839623ff 100644
--- a/src/google/protobuf/runtime_version.h
+++ b/src/google/protobuf/runtime_version.h
@@ -19,7 +19,7 @@
 
 // The OSS versions are not stripped to avoid merging conflicts.
 #define PROTOBUF_OSS_VERSION 5028000
-#define PROTOBUF_OSS_VERSION_SUFFIX "-rc3"
+#define PROTOBUF_OSS_VERSION_SUFFIX "-dev"
 
 #define PROTOBUF_VERSION PROTOBUF_OSS_VERSION
 #define PROTOBUF_VERSION_SUFFIX PROTOBUF_OSS_VERSION_SUFFIX
diff --git a/src/google/protobuf/source_context.pb.cc b/src/google/protobuf/source_context.pb.cc
index 455d2b5cceda..0a0d49c784bc 100644
--- a/src/google/protobuf/source_context.pb.cc
+++ b/src/google/protobuf/source_context.pb.cc
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/source_context.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #include "google/protobuf/source_context.pb.h"
 
diff --git a/src/google/protobuf/source_context.pb.h b/src/google/protobuf/source_context.pb.h
index 2c3dc820ca15..65e7c9c124b2 100644
--- a/src/google/protobuf/source_context.pb.h
+++ b/src/google/protobuf/source_context.pb.h
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/source_context.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #ifndef GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fsource_5fcontext_2eproto_2epb_2eh
 #define GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fsource_5fcontext_2eproto_2epb_2eh
diff --git a/src/google/protobuf/struct.pb.cc b/src/google/protobuf/struct.pb.cc
index 091cb8447e84..ec724a21fdd8 100644
--- a/src/google/protobuf/struct.pb.cc
+++ b/src/google/protobuf/struct.pb.cc
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/struct.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #include "google/protobuf/struct.pb.h"
 
diff --git a/src/google/protobuf/struct.pb.h b/src/google/protobuf/struct.pb.h
index 890e0717c30f..5906ab89cd97 100644
--- a/src/google/protobuf/struct.pb.h
+++ b/src/google/protobuf/struct.pb.h
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/struct.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #ifndef GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fstruct_2eproto_2epb_2eh
 #define GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fstruct_2eproto_2epb_2eh
diff --git a/src/google/protobuf/stubs/common.h b/src/google/protobuf/stubs/common.h
index 4506e7451aaf..637b889cd960 100644
--- a/src/google/protobuf/stubs/common.h
+++ b/src/google/protobuf/stubs/common.h
@@ -48,7 +48,7 @@ namespace internal {
 #define GOOGLE_PROTOBUF_VERSION 5028000
 
 // A suffix string for alpha, beta or rc releases. Empty for stable releases.
-#define GOOGLE_PROTOBUF_VERSION_SUFFIX "-rc3"
+#define GOOGLE_PROTOBUF_VERSION_SUFFIX "-dev"
 
 // Verifies that the protobuf version a program was compiled with matches what
 // it is linked/running with. Use the macro below to call this function.
diff --git a/src/google/protobuf/timestamp.pb.cc b/src/google/protobuf/timestamp.pb.cc
index c41db4838382..df90f6b0cffe 100644
--- a/src/google/protobuf/timestamp.pb.cc
+++ b/src/google/protobuf/timestamp.pb.cc
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/timestamp.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #include "google/protobuf/timestamp.pb.h"
 
diff --git a/src/google/protobuf/timestamp.pb.h b/src/google/protobuf/timestamp.pb.h
index 9e563f7e4da5..fc33f272d5ad 100644
--- a/src/google/protobuf/timestamp.pb.h
+++ b/src/google/protobuf/timestamp.pb.h
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/timestamp.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #ifndef GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2ftimestamp_2eproto_2epb_2eh
 #define GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2ftimestamp_2eproto_2epb_2eh
diff --git a/src/google/protobuf/type.pb.cc b/src/google/protobuf/type.pb.cc
index 89c6955e01de..fd91b84962f5 100644
--- a/src/google/protobuf/type.pb.cc
+++ b/src/google/protobuf/type.pb.cc
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/type.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #include "google/protobuf/type.pb.h"
 
diff --git a/src/google/protobuf/type.pb.h b/src/google/protobuf/type.pb.h
index 5d448dd49db9..49179c9635e1 100644
--- a/src/google/protobuf/type.pb.h
+++ b/src/google/protobuf/type.pb.h
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/type.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #ifndef GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2ftype_2eproto_2epb_2eh
 #define GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2ftype_2eproto_2epb_2eh
diff --git a/src/google/protobuf/wrappers.pb.cc b/src/google/protobuf/wrappers.pb.cc
index 7b46de423a9e..106aa16d1103 100644
--- a/src/google/protobuf/wrappers.pb.cc
+++ b/src/google/protobuf/wrappers.pb.cc
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/wrappers.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #include "google/protobuf/wrappers.pb.h"
 
diff --git a/src/google/protobuf/wrappers.pb.h b/src/google/protobuf/wrappers.pb.h
index 0d7e570c683e..2b03bb812e64 100644
--- a/src/google/protobuf/wrappers.pb.h
+++ b/src/google/protobuf/wrappers.pb.h
@@ -1,7 +1,7 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
 // NO CHECKED-IN PROTOBUF GENCODE
 // source: google/protobuf/wrappers.proto
-// Protobuf C++ Version: 5.28.0-rc3
+// Protobuf C++ Version: 5.28.0-dev
 
 #ifndef GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fwrappers_2eproto_2epb_2eh
 #define GOOGLE_PROTOBUF_INCLUDED_google_2fprotobuf_2fwrappers_2eproto_2epb_2eh
diff --git a/version.json b/version.json
index cd5c67c6d614..5c478e7dc5b0 100644
--- a/version.json
+++ b/version.json
@@ -1,17 +1,17 @@
 {
     "28.x": {
-        "protoc_version": "28.0-rc3",
+        "protoc_version": "28.0-dev",
         "lts": false,
         "date": "2024-08-22",
         "languages": {
-            "cpp": "5.28.0-rc3",
-            "csharp": "3.28.0-rc3",
-            "java": "4.28.0-rc3",
-            "javascript": "3.28.0-rc3",
-            "objectivec": "3.28.0-rc3",
-            "php": "4.28.0-rc3",
-            "python": "5.28.0-rc3",
-            "ruby": "4.28.0-rc3"
+            "cpp": "5.28.0-dev",
+            "csharp": "3.28.0-dev",
+            "java": "4.28.0-dev",
+            "javascript": "3.28.0-dev",
+            "objectivec": "3.28.0-dev",
+            "php": "4.28.0-dev",
+            "python": "5.28.0-dev",
+            "ruby": "4.28.0-dev"
         }
     }
 }
\ No newline at end of file