Breaking Change: The base class for generated messages will be

GeneratedMessage, not GeneratedMessageV3.

Please rerun protoc on your .proto files to regenerate the binding code.
https://protobuf.dev/news/2023-12-05/
https://protobuf.dev/support/cross-version-runtime-guarantee/

To fix source compatibility with surrounding code make these replacements:
GeneratedMessageV3 --> GeneratedMessage
SingleFieldBuilderV3 --> SingleFieldBuilder
RepeatedFieldBuilderV3 --> RepeatedFieldBuilder

PiperOrigin-RevId: 597642289

java/core/BUILD.bazel

@@ -486,10 +486,10 @@ LITE_TEST_EXCLUSIONS = [
     "src/test/java/com/google/protobuf/Proto2ExtensionLookupSchemaTest.java",
     "src/test/java/com/google/protobuf/Proto2SchemaTest.java",
     "src/test/java/com/google/protobuf/Proto2UnknownEnumValueTest.java",
-    "src/test/java/com/google/protobuf/RepeatedFieldBuilderV3Test.java",
+    "src/test/java/com/google/protobuf/RepeatedFieldBuilderTest.java",
     "src/test/java/com/google/protobuf/RuntimeVersionTest.java",
     "src/test/java/com/google/protobuf/ServiceTest.java",
-    "src/test/java/com/google/protobuf/SingleFieldBuilderV3Test.java",
+    "src/test/java/com/google/protobuf/SingleFieldBuilderTest.java",
     "src/test/java/com/google/protobuf/TestBadIdentifiers.java",
     "src/test/java/com/google/protobuf/TextFormatParseInfoTreeTest.java",
     "src/test/java/com/google/protobuf/TextFormatParseLocationTest.java",

java/core/src/main/java/com/google/protobuf/DescriptorMessageInfoFactory.java

@@ -34,7 +34,7 @@
 import java.util.Stack;
 import java.util.concurrent.ConcurrentHashMap;
 
-/** A factory for message info based on protobuf descriptors for a {@link GeneratedMessageV3}. */
+/** A factory for message info based on protobuf descriptors for a {@link GeneratedMessage}. */
 @ExperimentalApi
 final class DescriptorMessageInfoFactory implements MessageInfoFactory {
   private static final String GET_DEFAULT_INSTANCE_METHOD_NAME = "getDefaultInstance";
@@ -74,12 +74,12 @@ public static DescriptorMessageInfoFactory getInstance() {
 
   @Override
   public boolean isSupported(Class<?> messageType) {
-    return GeneratedMessageV3.class.isAssignableFrom(messageType);
+    return GeneratedMessage.class.isAssignableFrom(messageType);
   }
 
   @Override
   public MessageInfo messageInfoFor(Class<?> messageType) {
-    if (!GeneratedMessageV3.class.isAssignableFrom(messageType)) {
+    if (!GeneratedMessage.class.isAssignableFrom(messageType)) {
       throw new IllegalArgumentException("Unsupported message type: " + messageType.getName());
     }
 

java/core/src/main/java/com/google/protobuf/ExtensionSchemaFull.java

@@ -23,7 +23,7 @@ final class ExtensionSchemaFull extends ExtensionSchema<FieldDescriptor> {
 
   private static <T> long getExtensionsFieldOffset() {
     try {
-      Field field = GeneratedMessageV3.ExtendableMessage.class.getDeclaredField("extensions");
+      Field field = GeneratedMessage.ExtendableMessage.class.getDeclaredField("extensions");
       return UnsafeUtil.objectFieldOffset(field);
     } catch (Throwable e) {
       throw new IllegalStateException("Unable to lookup extension field offset");
@@ -32,7 +32,7 @@ private static <T> long getExtensionsFieldOffset() {
 
   @Override
   boolean hasExtensions(MessageLite prototype) {
-    return prototype instanceof GeneratedMessageV3.ExtendableMessage;
+    return prototype instanceof GeneratedMessage.ExtendableMessage;
   }
 
   @Override