diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
new file mode 100644
index 0000000..2a95177
--- /dev/null
+++ b/.github/workflows/backport.yml
@@ -0,0 +1,40 @@
+name: Backport
+on:
+  pull_request_target:
+    types:
+      - closed
+      - labeled
+
+jobs:
+  backport:
+    name: Backport
+    runs-on: ubuntu-latest
+    # Only react to merged PRs for security reasons.
+    # See https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target.
+    if: >
+      github.event.pull_request.merged
+      && (
+        github.event.action == 'closed'
+        || (
+          github.event.action == 'labeled'
+          && contains(github.event.label.name, 'backport')
+        )
+      )
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - name: GitHub App token
+        id: github_app_token
+        uses: tibdex/github-app-token@v2.1.0
+        with:
+          app_id: ${{ secrets.APP_ID }}
+          private_key: ${{ secrets.APP_PRIVATE_KEY }}
+          installation_id: 22958780
+
+      - name: Backport
+        uses: VachaShah/backport@v2.2.0
+        with:
+          github_token: ${{ steps.github_app_token.outputs.token }}
+          head_template: backport/backport-<%= number %>-to-<%= base %>
+          failure_labels: backport-failed
diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index 8680965..6cdcad4 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -2,9 +2,16 @@ name: Java CI with Gradle
 
 on:
   push:
-    branches: [ "main" ]
+    branches:
+      - main
+      - '[0-9]+.[0-9]+'
+      - '[0-9]+.x'
   pull_request:
-    branches: [ "main" ]
+    branches:
+      - main
+      - '[0-9]+.[0-9]+'
+      - '[0-9]+.x'
+
 
 permissions:
   contents: read
diff --git a/build.gradle b/build.gradle
index 1cb1145..4a333a1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -19,7 +19,7 @@ repositories {
 }
 
 allprojects {
-    version = '2.16.0-SNAPSHOT'
+    version = '3.0.0-SNAPSHOT'
 
     // Force using a newer version, due to guava vulnerability CVE-2023-2976. Remove after Gradle upgrades its default version.
     checkstyle {
@@ -35,9 +35,9 @@ subprojects {
     apply plugin: 'com.diffplug.spotless'
 
     ext {
-        opensearch_version = System.getProperty("opensearch.version", "2.16.0-SNAPSHOT")
+        opensearch_version = System.getProperty("opensearch.version", "3.0.0-SNAPSHOT")
         sdk_version = "3.24.0"
-        jackson_version = "2.17.1"
+        jackson_version = "2.17.2"
     }
 
     repositories {
diff --git a/oci-objectstorage-fixture/build.gradle b/oci-objectstorage-fixture/build.gradle
index 41ed2ce..a281207 100644
--- a/oci-objectstorage-fixture/build.gradle
+++ b/oci-objectstorage-fixture/build.gradle
@@ -1,8 +1,22 @@
+buildscript {
+    repositories {
+        mavenLocal()
+        maven { url "https://aws.oss.sonatype.org/content/repositories/snapshots" }
+        mavenCentral()
+        maven { url "https://plugins.gradle.org/m2/" }
+    }
+
+    dependencies {
+        classpath "org.opensearch.gradle:build-tools:${opensearch_version}"
+    }
+}
+
 plugins {
     id 'java-library'
     id 'java'
 }
 
+apply plugin: 'opensearch.repositories'
 apply plugin: 'io.freefair.lombok'
 apply plugin: 'java'
 apply plugin: 'java-library'
diff --git a/oci-repository-plugin/src/test/java/org/opensearch/repositories/oci/OciObjectStoragePluginTests.java b/oci-repository-plugin/src/test/java/org/opensearch/repositories/oci/OciObjectStoragePluginTests.java
index 3876133..6b4ac08 100644
--- a/oci-repository-plugin/src/test/java/org/opensearch/repositories/oci/OciObjectStoragePluginTests.java
+++ b/oci-repository-plugin/src/test/java/org/opensearch/repositories/oci/OciObjectStoragePluginTests.java
@@ -34,7 +34,7 @@
 import org.opensearch.plugins.Plugin;
 import org.opensearch.search.builder.SearchSourceBuilder;
 import org.opensearch.test.OpenSearchIntegTestCase;
-import org.opensearch.transport.Netty4Plugin;
+import org.opensearch.transport.Netty4ModulePlugin;
 
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
@@ -62,7 +62,7 @@ protected boolean addMockHttpTransport() {
     @Override
     protected Collection<Class<? extends Plugin>> nodePlugins() {
         return Collections.unmodifiableCollection(
-                Lists.newArrayList(Netty4Plugin.class, OciObjectStoragePlugin.class));
+                Lists.newArrayList(Netty4ModulePlugin.class, OciObjectStoragePlugin.class));
     }
     /** ******************************* */
     @Test