diff --git a/.github/release-please.yml b/.github/release-please.yml
index 2035ffc07..8b04a0c2d 100644
--- a/.github/release-please.yml
+++ b/.github/release-please.yml
@@ -2,9 +2,8 @@ bumpMinorPreMajor: true
 handleGHRelease: true
 releaseType: java-yoshi
 branches:
-  - bumpMinorPreMajor: true
-    handleGHRelease: true
-    releaseType: java-yoshi
-    branch: java7
+    - branch: java7
+    - branch: protobuf-4.x-rc
+      manifest: true
 extraFiles:
-  - src/main/java/com/google/cloud/logging/logback/LoggingAppender.java
+    - src/main/java/com/google/cloud/logging/logback/LoggingAppender.java
diff --git a/.github/workflows/unmanaged_dependency_check.yaml b/.github/workflows/unmanaged_dependency_check.yaml
index 036c3132d..82b679bde 100644
--- a/.github/workflows/unmanaged_dependency_check.yaml
+++ b/.github/workflows/unmanaged_dependency_check.yaml
@@ -14,6 +14,6 @@ jobs:
       shell: bash
       run: .kokoro/build.sh
     - name: Unmanaged dependency check
-      uses: googleapis/sdk-platform-java/java-shared-dependencies/unmanaged-dependency-check@google-cloud-shared-dependencies/v3.54.1
+      uses: googleapis/sdk-platform-java/java-shared-dependencies/unmanaged-dependency-check@google-cloud-shared-dependencies/v3.55.1
       with:
         bom-path: pom.xml
diff --git a/.kokoro/presubmit/graalvm-native-a.cfg b/.kokoro/presubmit/graalvm-native-a.cfg
index b632491ca..0c7592388 100644
--- a/.kokoro/presubmit/graalvm-native-a.cfg
+++ b/.kokoro/presubmit/graalvm-native-a.cfg
@@ -3,7 +3,7 @@
 # Configure the docker image for kokoro-trampoline.
 env_vars: {
   key: "TRAMPOLINE_IMAGE"
-  value: "gcr.io/cloud-devrel-public-resources/graalvm_sdk_platform_a:3.54.1"
+  value: "gcr.io/cloud-devrel-public-resources/graalvm_sdk_platform_a:3.55.1"
 }
 
 env_vars: {
diff --git a/.kokoro/presubmit/graalvm-native-b.cfg b/.kokoro/presubmit/graalvm-native-b.cfg
index d110d2ae2..09ee76021 100644
--- a/.kokoro/presubmit/graalvm-native-b.cfg
+++ b/.kokoro/presubmit/graalvm-native-b.cfg
@@ -3,7 +3,7 @@
 # Configure the docker image for kokoro-trampoline.
 env_vars: {
   key: "TRAMPOLINE_IMAGE"
-  value: "gcr.io/cloud-devrel-public-resources/graalvm_sdk_platform_b:3.54.1"
+  value: "gcr.io/cloud-devrel-public-resources/graalvm_sdk_platform_b:3.55.1"
 }
 
 env_vars: {
diff --git a/.kokoro/presubmit/graalvm-native-c.cfg b/.kokoro/presubmit/graalvm-native-c.cfg
index cb33bde95..eb74d2655 100644
--- a/.kokoro/presubmit/graalvm-native-c.cfg
+++ b/.kokoro/presubmit/graalvm-native-c.cfg
@@ -3,7 +3,7 @@
 # Configure the docker image for kokoro-trampoline.
 env_vars: {
   key: "TRAMPOLINE_IMAGE"
-  value: "gcr.io/cloud-devrel-public-resources/graalvm_sdk_platform_c:3.54.1"
+  value: "gcr.io/cloud-devrel-public-resources/graalvm_sdk_platform_c:3.55.1"
 }
 
 env_vars: {
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 914bc76fb..eaac9456c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,22 @@
 # Changelog
 
 
+## [0.132.21-alpha](https://github.com/googleapis/java-logging-logback/compare/v0.132.20-alpha...v0.132.21-alpha) (2026-01-15)
+
+
+### Dependencies
+
+* Update dependency com.google.cloud:google-cloud-logging to v3.23.10 ([#1581](https://github.com/googleapis/java-logging-logback/issues/1581)) ([321e689](https://github.com/googleapis/java-logging-logback/commit/321e689613215749bc079c4941149d64544f92ef))
+* Update dependency com.google.cloud:sdk-platform-java-config to v3.55.1 ([#1586](https://github.com/googleapis/java-logging-logback/issues/1586)) ([aa040f3](https://github.com/googleapis/java-logging-logback/commit/aa040f310ac5e97382265735edc87287424e981d))
+
+## [0.132.20-alpha](https://github.com/googleapis/java-logging-logback/compare/v0.132.19-alpha...v0.132.20-alpha) (2025-12-12)
+
+
+### Dependencies
+
+* Update dependency com.google.cloud:google-cloud-logging to v3.23.9 ([#1577](https://github.com/googleapis/java-logging-logback/issues/1577)) ([1ff07ce](https://github.com/googleapis/java-logging-logback/commit/1ff07cec29c542965f955be4e28d99a62c555a9c))
+* Update dependency com.google.cloud:sdk-platform-java-config to v3.54.2 ([#1575](https://github.com/googleapis/java-logging-logback/issues/1575)) ([40e5544](https://github.com/googleapis/java-logging-logback/commit/40e5544a9b072f15d18401ebdf4af377b9008e6b))
+
 ## [0.132.19-alpha](https://github.com/googleapis/java-logging-logback/compare/v0.132.18-alpha...v0.132.19-alpha) (2025-11-14)
 
 
diff --git a/README.md b/README.md
index 7b14f4198..7f1bbd1a0 100644
--- a/README.md
+++ b/README.md
@@ -308,29 +308,10 @@ information.
 
 Apache 2.0 - See [LICENSE][license] for more information.
 
-## CI Status
-
-Java Version | Status
------------- | ------
-Java 8 | [![Kokoro CI][kokoro-badge-image-2]][kokoro-badge-link-2]
-Java 8 OSX | [![Kokoro CI][kokoro-badge-image-3]][kokoro-badge-link-3]
-Java 8 Windows | [![Kokoro CI][kokoro-badge-image-4]][kokoro-badge-link-4]
-Java 11 | [![Kokoro CI][kokoro-badge-image-5]][kokoro-badge-link-5]
-
 Java is a registered trademark of Oracle and/or its affiliates.
 
 [product-docs]: https://cloud.google.com/logging/docs/setup/java#logback_appender_for
 [javadocs]: https://cloud.google.com/java/docs/reference/google-cloud-logging-logback/latest/history
-[kokoro-badge-image-1]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-logging-logback/java7.svg
-[kokoro-badge-link-1]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-logging-logback/java7.html
-[kokoro-badge-image-2]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-logging-logback/java8.svg
-[kokoro-badge-link-2]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-logging-logback/java8.html
-[kokoro-badge-image-3]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-logging-logback/java8-osx.svg
-[kokoro-badge-link-3]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-logging-logback/java8-osx.html
-[kokoro-badge-image-4]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-logging-logback/java8-win.svg
-[kokoro-badge-link-4]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-logging-logback/java8-win.html
-[kokoro-badge-image-5]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-logging-logback/java11.svg
-[kokoro-badge-link-5]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-logging-logback/java11.html
 [stability-image]: https://img.shields.io/badge/stability-preview-yellow
 [maven-version-image]: https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-logging-logback.svg
 [maven-version-link]: https://central.sonatype.com/artifact/com.google.cloud/google-cloud-logging-logback/0.131.11-alpha
diff --git a/pom.xml b/pom.xml
index ab9799c18..f063399ae 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
   <modelVersion>4.0.0</modelVersion>
 
   <artifactId>google-cloud-logging-logback</artifactId>
-  <version>0.132.19-alpha</version><!-- {x-version-update:google-cloud-logging-logback:current} -->
+  <version>0.132.21-alpha</version><!-- {x-version-update:google-cloud-logging-logback:current} -->
   <packaging>jar</packaging>
   <name>Google Cloud Logging Logback Appender</name>
   <url>https://github.com/googleapis/java-logging-logback</url>
@@ -17,7 +17,7 @@
     <logback.version>1.2.13</logback.version>
     <easymock.version>5.6.0</easymock.version>
     <truth.version>1.4.4</truth.version>
-    <logging.version>3.23.8</logging.version>
+    <logging.version>3.23.10</logging.version>
     <slf4j.version>1.7.36</slf4j.version>
     <google.api-common.version>1.10.1</google.api-common.version>
   </properties>
@@ -25,7 +25,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>sdk-platform-java-config</artifactId>
-    <version>3.54.1</version>
+    <version>3.55.1</version>
   </parent>
 
   <developers>
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index afd1086d5..d31a9a463 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-logging-logback</artifactId>
-      <version>0.132.19-alpha</version>
+      <version>0.132.21-alpha</version>
     </dependency>
     <!-- {x-version-update-end} -->
 
diff --git a/src/main/java/com/google/cloud/logging/logback/LoggingAppender.java b/src/main/java/com/google/cloud/logging/logback/LoggingAppender.java
index 5e92a9673..da02dfe4e 100644
--- a/src/main/java/com/google/cloud/logging/logback/LoggingAppender.java
+++ b/src/main/java/com/google/cloud/logging/logback/LoggingAppender.java
@@ -125,7 +125,7 @@ public class LoggingAppender extends UnsynchronizedAppenderBase<ILoggingEvent> {
   // See
   // https://github.com/googleapis/release-please/blob/main/docs/customizing.md#updating-arbitrary-files
   // {x-version-update-start:google-cloud-logging-logback:current}
-  public static final String DEFAULT_INSTRUMENTATION_VERSION = "0.132.19-alpha";
+  public static final String DEFAULT_INSTRUMENTATION_VERSION = "0.132.21-alpha";
   // {x-version-update-end}
   private static boolean instrumentationAdded = false;
   private static final Object instrumentationLock = new Object();
diff --git a/versions.txt b/versions.txt
index 8b8f03ade..2deb454d1 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,4 +1,4 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-logging-logback:0.132.19-alpha:0.132.19-alpha
+google-cloud-logging-logback:0.132.21-alpha:0.132.21-alpha