diff --git a/CHANGELOG.md b/CHANGELOG.md
index 93bc85b6f..74d1520d8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [2.6.0](https://github.com/googleapis/google-api-java-client/compare/v2.5.1...v2.6.0) (2024-05-24)
+
+
+### Features
+
+* WebHookUtil classes using the jakarta namespace ([#2484](https://github.com/googleapis/google-api-java-client/issues/2484)) ([e928cfa](https://github.com/googleapis/google-api-java-client/commit/e928cfa159b9bce81214e0fb94e49ed034f23056))
+
+
+### Bug Fixes
+
+* **deps:** Update dependency com.google.oauth-client:google-oauth-client-bom to v1.36.0 ([#2476](https://github.com/googleapis/google-api-java-client/issues/2476)) ([7556a88](https://github.com/googleapis/google-api-java-client/commit/7556a88547e4ca64e124a7af6699369f92dec7ae))
+
 ## [2.5.1](https://github.com/googleapis/google-api-java-client/compare/v2.5.0...v2.5.1) (2024-05-16)
 
 
diff --git a/google-api-client-android/pom.xml b/google-api-client-android/pom.xml
index dc1efbc33..54ff7b7ad 100644
--- a/google-api-client-android/pom.xml
+++ b/google-api-client-android/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client-android</artifactId>
diff --git a/google-api-client-appengine/pom.xml b/google-api-client-appengine/pom.xml
index 6644ded4e..613133e62 100644
--- a/google-api-client-appengine/pom.xml
+++ b/google-api-client-appengine/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client-appengine</artifactId>
diff --git a/google-api-client-assembly/pom.xml b/google-api-client-assembly/pom.xml
index 2b5313b16..6c065f16a 100644
--- a/google-api-client-assembly/pom.xml
+++ b/google-api-client-assembly/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <groupId>com.google.api-client</groupId>
diff --git a/google-api-client-bom/pom.xml b/google-api-client-bom/pom.xml
index d3c27b5c9..3bf41f17d 100644
--- a/google-api-client-bom/pom.xml
+++ b/google-api-client-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api-client</groupId>
   <artifactId>google-api-client-bom</artifactId>
-  <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+  <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
   <packaging>pom</packaging>
 
   <name>Google API Client Library for Java BOM</name>
@@ -63,48 +63,48 @@
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client</artifactId>
-        <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-android</artifactId>
-        <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-appengine</artifactId>
-        <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-assembly</artifactId>
-        <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
         <type>pom</type>
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-gson</artifactId>
-        <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-jackson2</artifactId>
-        <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-protobuf</artifactId>
-        <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-servlet</artifactId>
-        <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api-client</groupId>
         <artifactId>google-api-client-xml</artifactId>
-        <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+        <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/google-api-client-gson/pom.xml b/google-api-client-gson/pom.xml
index 6edeab707..65c0c5796 100644
--- a/google-api-client-gson/pom.xml
+++ b/google-api-client-gson/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client-gson</artifactId>
diff --git a/google-api-client-jackson2/pom.xml b/google-api-client-jackson2/pom.xml
index 5f691de11..f1a472cb8 100644
--- a/google-api-client-jackson2/pom.xml
+++ b/google-api-client-jackson2/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client-jackson2</artifactId>
diff --git a/google-api-client-protobuf/pom.xml b/google-api-client-protobuf/pom.xml
index 372454df2..309cf9a21 100644
--- a/google-api-client-protobuf/pom.xml
+++ b/google-api-client-protobuf/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client-protobuf</artifactId>
diff --git a/google-api-client-servlet/pom.xml b/google-api-client-servlet/pom.xml
index c70df8ac2..ac488fe00 100644
--- a/google-api-client-servlet/pom.xml
+++ b/google-api-client-servlet/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client-servlet</artifactId>
diff --git a/google-api-client-xml/pom.xml b/google-api-client-xml/pom.xml
index df42ac259..cc8bde53c 100644
--- a/google-api-client-xml/pom.xml
+++ b/google-api-client-xml/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client-xml</artifactId>
diff --git a/google-api-client/pom.xml b/google-api-client/pom.xml
index 63a4f8985..04f156b8c 100644
--- a/google-api-client/pom.xml
+++ b/google-api-client/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>com.google.api-client</groupId>
     <artifactId>google-api-client-parent</artifactId>
-    <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+    <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
     <relativePath>../pom.xml</relativePath>
   </parent>
   <artifactId>google-api-client</artifactId>
diff --git a/pom.xml b/pom.xml
index ae679678d..eb82f4f52 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api-client</groupId>
   <artifactId>google-api-client-parent</artifactId>
-  <version>2.5.2-SNAPSHOT</version><!-- {x-version-update:google-api-client:current} -->
+  <version>2.6.0</version><!-- {x-version-update:google-api-client:current} -->
   <packaging>pom</packaging>
   <name>Parent for the Google API Client Library for Java</name>
   <description>The Google APIs Client Library for Java is a Java client library
diff --git a/versions.txt b/versions.txt
index e1136ee55..e942840e7 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,4 +1,4 @@
 # Format:
 # module:released-version:current-version
 
-google-api-client:2.5.1:2.5.2-SNAPSHOT
+google-api-client:2.6.0:2.6.0