diff --git a/README.adoc b/README.adoc
index 9d84e36e..f980ffa7 100644
--- a/README.adoc
+++ b/README.adoc
@@ -40,11 +40,15 @@ tracker for issues and merging pull requests into main. If you want
 to contribute even something trivial please do not hesitate, but
 follow the guidelines below.
 
-[[developer-certificate-of-origin]]
-== Developer Certificate of Origin (DCO)
+[[sign-the-contributor-license-agreement]]
+== Sign the Contributor License Agreement
 
-All commits must include a __Signed-off-by__ trailer at the end of each commit message to indicate that the contributor agrees to the Developer Certificate of Origin.
-For additional details, please refer to the blog post https://spring.io/blog/2025/01/06/hello-dco-goodbye-cla-simplifying-contributions-to-spring[Hello DCO, Goodbye CLA: Simplifying Contributions to Spring].
+Before we accept a non-trivial patch or pull request we will need you to sign the
+https://cla.pivotal.io/sign/spring[Contributor License Agreement].
+Signing the contributor's agreement does not grant anyone commit rights to the main
+repository, but it does mean that we can accept your contributions, and you will get an
+author credit if we do.  Active contributors might be asked to join the core team, and
+given the ability to merge pull requests.
 
 [[code-of-conduct]]
 == Code of Conduct
diff --git a/docs/pom.xml b/docs/pom.xml
index 709dc57e..df489971 100644
--- a/docs/pom.xml
+++ b/docs/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>4.3.0-SNAPSHOT</version>
+		<version>4.2.1-SNAPSHOT</version>
 	</parent>
 	<artifactId>spring-cloud-gateway-docs</artifactId>
 	<packaging>jar</packaging>
diff --git a/pom.xml b/pom.xml
index c23ff6f3..87438173 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
 	<groupId>org.springframework.cloud</groupId>
 	<artifactId>spring-cloud-gateway</artifactId>
-	<version>4.3.0-SNAPSHOT</version>
+	<version>4.2.1-SNAPSHOT</version>
 	<packaging>pom</packaging>
 
 	<name>Spring Cloud Gateway</name>
@@ -15,7 +15,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-build</artifactId>
-		<version>4.3.0-SNAPSHOT</version>
+		<version>4.2.1-SNAPSHOT</version>
 		<relativePath/>
 	</parent>
 	<scm>
@@ -55,8 +55,8 @@
 		<blockhound.version>1.0.8.RELEASE</blockhound.version>
 		<java.version>17</java.version>
 		<junit-pioneer.version>2.3.0</junit-pioneer.version>
-		<spring-cloud-circuitbreaker.version>3.3.0-SNAPSHOT</spring-cloud-circuitbreaker.version>
-		<spring-cloud-commons.version>4.3.0-SNAPSHOT</spring-cloud-commons.version>
+		<spring-cloud-circuitbreaker.version>3.2.1-SNAPSHOT</spring-cloud-circuitbreaker.version>
+		<spring-cloud-commons.version>4.2.1-SNAPSHOT</spring-cloud-commons.version>
 	</properties>
 
 	<dependencyManagement>
diff --git a/spring-cloud-gateway-dependencies/pom.xml b/spring-cloud-gateway-dependencies/pom.xml
index 2ee6b9a9..6d255037 100644
--- a/spring-cloud-gateway-dependencies/pom.xml
+++ b/spring-cloud-gateway-dependencies/pom.xml
@@ -6,12 +6,12 @@
 	<parent>
 		<artifactId>spring-cloud-dependencies-parent</artifactId>
 		<groupId>org.springframework.cloud</groupId>
-		<version>4.3.0-SNAPSHOT</version>
+		<version>4.2.1-SNAPSHOT</version>
 		<relativePath/>
 	</parent>
 
 	<artifactId>spring-cloud-gateway-dependencies</artifactId>
-	<version>4.3.0-SNAPSHOT</version>
+	<version>4.2.1-SNAPSHOT</version>
 	<packaging>pom</packaging>
 
 	<name>spring-cloud-gateway-dependencies</name>
diff --git a/spring-cloud-gateway-integration-tests/grpc/pom.xml b/spring-cloud-gateway-integration-tests/grpc/pom.xml
index 8c565d40..606d6cf6 100644
--- a/spring-cloud-gateway-integration-tests/grpc/pom.xml
+++ b/spring-cloud-gateway-integration-tests/grpc/pom.xml
@@ -18,7 +18,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway-integration-tests</artifactId>
-		<version>4.3.0-SNAPSHOT</version>
+		<version>4.2.1-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-gateway-integration-tests/http2/pom.xml b/spring-cloud-gateway-integration-tests/http2/pom.xml
index 6ac0d2fd..f833c541 100644
--- a/spring-cloud-gateway-integration-tests/http2/pom.xml
+++ b/spring-cloud-gateway-integration-tests/http2/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway-integration-tests</artifactId>
-		<version>4.3.0-SNAPSHOT</version>
+		<version>4.2.1-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-gateway-integration-tests/mvc-failure-analyzer/pom.xml b/spring-cloud-gateway-integration-tests/mvc-failure-analyzer/pom.xml
index 9302b3b5..c79551c2 100644
--- a/spring-cloud-gateway-integration-tests/mvc-failure-analyzer/pom.xml
+++ b/spring-cloud-gateway-integration-tests/mvc-failure-analyzer/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway-integration-tests</artifactId>
-		<version>4.3.0-SNAPSHOT</version>
+		<version>4.2.1-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-gateway-integration-tests/pom.xml b/spring-cloud-gateway-integration-tests/pom.xml
index 461e4c70..e9bf2a3c 100644
--- a/spring-cloud-gateway-integration-tests/pom.xml
+++ b/spring-cloud-gateway-integration-tests/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>4.3.0-SNAPSHOT</version>
+		<version>4.2.1-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 	
diff --git a/spring-cloud-gateway-mvc/pom.xml b/spring-cloud-gateway-mvc/pom.xml
index 14d0d2aa..ed68626d 100644
--- a/spring-cloud-gateway-mvc/pom.xml
+++ b/spring-cloud-gateway-mvc/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>4.3.0-SNAPSHOT</version>
+		<version>4.2.1-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-gateway-sample/pom.xml b/spring-cloud-gateway-sample/pom.xml
index b32a638f..41884109 100644
--- a/spring-cloud-gateway-sample/pom.xml
+++ b/spring-cloud-gateway-sample/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>4.3.0-SNAPSHOT</version>
+		<version>4.2.1-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/spring-cloud-gateway-server-mvc/pom.xml b/spring-cloud-gateway-server-mvc/pom.xml
index 62d1f602..ba17bdf7 100644
--- a/spring-cloud-gateway-server-mvc/pom.xml
+++ b/spring-cloud-gateway-server-mvc/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.springframework.cloud</groupId>
         <artifactId>spring-cloud-gateway</artifactId>
-        <version>4.3.0-SNAPSHOT</version>
+        <version>4.2.1-SNAPSHOT</version>
         <relativePath>..</relativePath> <!-- lookup parent from repository -->
     </parent>
     <artifactId>spring-cloud-gateway-server-mvc</artifactId>
diff --git a/spring-cloud-gateway-server/pom.xml b/spring-cloud-gateway-server/pom.xml
index 0f07a777..c365ed4b 100644
--- a/spring-cloud-gateway-server/pom.xml
+++ b/spring-cloud-gateway-server/pom.xml
@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>4.3.0-SNAPSHOT</version>
+		<version>4.2.1-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 	<artifactId>spring-cloud-gateway-server</artifactId>
diff --git a/spring-cloud-gateway-webflux/pom.xml b/spring-cloud-gateway-webflux/pom.xml
index 5859d52d..fe8b8ece 100644
--- a/spring-cloud-gateway-webflux/pom.xml
+++ b/spring-cloud-gateway-webflux/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>4.3.0-SNAPSHOT</version>
+		<version>4.2.1-SNAPSHOT</version>
 		<relativePath>..</relativePath>
 	</parent>
 
diff --git a/spring-cloud-starter-gateway-mvc/pom.xml b/spring-cloud-starter-gateway-mvc/pom.xml
index dc37832b..a2c8eba8 100644
--- a/spring-cloud-starter-gateway-mvc/pom.xml
+++ b/spring-cloud-starter-gateway-mvc/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>4.3.0-SNAPSHOT</version>
+		<version>4.2.1-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 	<artifactId>spring-cloud-starter-gateway-mvc</artifactId>
diff --git a/spring-cloud-starter-gateway/pom.xml b/spring-cloud-starter-gateway/pom.xml
index b445822a..f32a7980 100644
--- a/spring-cloud-starter-gateway/pom.xml
+++ b/spring-cloud-starter-gateway/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-gateway</artifactId>
-		<version>4.3.0-SNAPSHOT</version>
+		<version>4.2.1-SNAPSHOT</version>
 		<relativePath>..</relativePath> <!-- lookup parent from repository -->
 	</parent>
 	<artifactId>spring-cloud-starter-gateway</artifactId>