diff --git a/docs/pom.xml b/docs/pom.xml
index 7e3e0f028..d55e7df53 100644
--- a/docs/pom.xml
+++ b/docs/pom.xml
@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-function-parent</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M4</version>
 	</parent>
 	<packaging>pom</packaging>
 	<name>Spring Cloud Function Docs</name>
diff --git a/pom.xml b/pom.xml
index 4f6e79717..b9f2d7f56 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,13 +6,13 @@
 
 	<artifactId>spring-cloud-function-parent</artifactId>
 	<name>Spring Cloud Function Parent</name>
-	<version>3.1.0-SNAPSHOT</version>
+	<version>3.1.0-M4</version>
 	<packaging>pom</packaging>
 
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-build</artifactId>
-		<version>3.0.0-SNAPSHOT</version>
+		<version>3.0.0-M4</version>
 		<relativePath/>
 	</parent>
 
diff --git a/spring-cloud-function-adapters/pom.xml b/spring-cloud-function-adapters/pom.xml
index 83a50d910..a8f6e713e 100644
--- a/spring-cloud-function-adapters/pom.xml
+++ b/spring-cloud-function-adapters/pom.xml
@@ -10,7 +10,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-function-parent</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M4</version>
 	</parent>
 
 	<name>spring-cloud-function-adapter-parent</name>
diff --git a/spring-cloud-function-adapters/spring-cloud-function-adapter-aws/pom.xml b/spring-cloud-function-adapters/spring-cloud-function-adapter-aws/pom.xml
index be5178c7e..6206f78a1 100644
--- a/spring-cloud-function-adapters/spring-cloud-function-adapter-aws/pom.xml
+++ b/spring-cloud-function-adapters/spring-cloud-function-adapter-aws/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-function-adapter-parent</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M4</version>
 	</parent>
 
 	<properties>
diff --git a/spring-cloud-function-adapters/spring-cloud-function-adapter-azure/pom.xml b/spring-cloud-function-adapters/spring-cloud-function-adapter-azure/pom.xml
index 092015555..4227a6b79 100644
--- a/spring-cloud-function-adapters/spring-cloud-function-adapter-azure/pom.xml
+++ b/spring-cloud-function-adapters/spring-cloud-function-adapter-azure/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-function-adapter-parent</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M4</version>
 	</parent>
 
 	<properties>
diff --git a/spring-cloud-function-adapters/spring-cloud-function-adapter-gcp/pom.xml b/spring-cloud-function-adapters/spring-cloud-function-adapter-gcp/pom.xml
index bae4b0d25..75ec04cab 100644
--- a/spring-cloud-function-adapters/spring-cloud-function-adapter-gcp/pom.xml
+++ b/spring-cloud-function-adapters/spring-cloud-function-adapter-gcp/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<artifactId>spring-cloud-function-adapter-parent</artifactId>
 		<groupId>org.springframework.cloud</groupId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M4</version>
 	</parent>
 
 	<properties>
diff --git a/spring-cloud-function-adapters/spring-cloud-function-adapter-openwhisk/pom.xml b/spring-cloud-function-adapters/spring-cloud-function-adapter-openwhisk/pom.xml
index bcbac76e5..35e2703d7 100644
--- a/spring-cloud-function-adapters/spring-cloud-function-adapter-openwhisk/pom.xml
+++ b/spring-cloud-function-adapters/spring-cloud-function-adapter-openwhisk/pom.xml
@@ -13,7 +13,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-function-adapter-parent</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M4</version>
 	</parent>
 
 	<dependencies>
diff --git a/spring-cloud-function-compiler/pom.xml b/spring-cloud-function-compiler/pom.xml
index 1d6f0ea06..f44ab6b8e 100644
--- a/spring-cloud-function-compiler/pom.xml
+++ b/spring-cloud-function-compiler/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-function-parent</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M4</version>
 	</parent>
 
 	<dependencies>
diff --git a/spring-cloud-function-context/pom.xml b/spring-cloud-function-context/pom.xml
index 71102a2c6..655b0aeb9 100644
--- a/spring-cloud-function-context/pom.xml
+++ b/spring-cloud-function-context/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-function-parent</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M4</version>
 	</parent>
 
 	<dependencies>
diff --git a/spring-cloud-function-core/pom.xml b/spring-cloud-function-core/pom.xml
index a89c07761..8b6c285f4 100644
--- a/spring-cloud-function-core/pom.xml
+++ b/spring-cloud-function-core/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-function-parent</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M4</version>
 	</parent>
 
 	<dependencies>
diff --git a/spring-cloud-function-dependencies/pom.xml b/spring-cloud-function-dependencies/pom.xml
index de8a1b625..e7a223c22 100644
--- a/spring-cloud-function-dependencies/pom.xml
+++ b/spring-cloud-function-dependencies/pom.xml
@@ -6,11 +6,11 @@
 	<parent>
 		<artifactId>spring-cloud-dependencies-parent</artifactId>
 		<groupId>org.springframework.cloud</groupId>
-		<version>3.0.0-SNAPSHOT</version>
+		<version>3.0.0-M4</version>
 		<relativePath/>
 	</parent>
 	<artifactId>spring-cloud-function-dependencies</artifactId>
-	<version>3.1.0-SNAPSHOT</version>
+	<version>3.1.0-M4</version>
 	<packaging>pom</packaging>
 	<name>Spring Cloud Function Dependencies</name>
 	<description>Spring Cloud Function Dependencies</description>
diff --git a/spring-cloud-function-deployer/pom.xml b/spring-cloud-function-deployer/pom.xml
index 3b1c1634e..c62ffa91e 100644
--- a/spring-cloud-function-deployer/pom.xml
+++ b/spring-cloud-function-deployer/pom.xml
@@ -10,7 +10,7 @@
 		<parent>
 			<groupId>org.springframework.cloud</groupId>
 			<artifactId>spring-cloud-function-parent</artifactId>
-			<version>3.1.0-SNAPSHOT</version>
+			<version>3.1.0-M4</version>
 		</parent>
 
 	<properties>
diff --git a/spring-cloud-function-deployer/src/it/bootapp-multi/pom.xml b/spring-cloud-function-deployer/src/it/bootapp-multi/pom.xml
index 96850edb0..73bbfa965 100644
--- a/spring-cloud-function-deployer/src/it/bootapp-multi/pom.xml
+++ b/spring-cloud-function-deployer/src/it/bootapp-multi/pom.xml
@@ -18,7 +18,7 @@
 
 	<properties>
 		<java.version>1.8</java.version>
-		<spring-cloud-function.version>3.1.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.1.0-M4</spring-cloud-function.version>
 		<wrapper.version>1.0.17.RELEASE</wrapper.version>
 	</properties>
 
diff --git a/spring-cloud-function-deployer/src/it/bootapp-with-javax/pom.xml b/spring-cloud-function-deployer/src/it/bootapp-with-javax/pom.xml
index 3da3e63fe..f0bc0e9ce 100644
--- a/spring-cloud-function-deployer/src/it/bootapp-with-javax/pom.xml
+++ b/spring-cloud-function-deployer/src/it/bootapp-with-javax/pom.xml
@@ -18,7 +18,7 @@
 
 	<properties>
 		<java.version>1.8</java.version>
-		<spring-cloud-function.version>3.1.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.1.0-M4</spring-cloud-function.version>
 		<wrapper.version>1.0.17.RELEASE</wrapper.version>
 	</properties>
 
diff --git a/spring-cloud-function-deployer/src/it/bootapp-with-scf/pom.xml b/spring-cloud-function-deployer/src/it/bootapp-with-scf/pom.xml
index 7993859ce..532ee2faa 100644
--- a/spring-cloud-function-deployer/src/it/bootapp-with-scf/pom.xml
+++ b/spring-cloud-function-deployer/src/it/bootapp-with-scf/pom.xml
@@ -18,7 +18,7 @@
 
 	<properties>
 		<java.version>1.8</java.version>
-		<spring-cloud-function.version>3.1.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.1.0-M4</spring-cloud-function.version>
 		<wrapper.version>1.0.17.RELEASE</wrapper.version>
 	</properties>
 
diff --git a/spring-cloud-function-deployer/src/it/bootapp/pom.xml b/spring-cloud-function-deployer/src/it/bootapp/pom.xml
index 2c43c5f7d..cb0d5daf8 100644
--- a/spring-cloud-function-deployer/src/it/bootapp/pom.xml
+++ b/spring-cloud-function-deployer/src/it/bootapp/pom.xml
@@ -18,7 +18,7 @@
 
 	<properties>
 		<java.version>1.8</java.version>
-		<spring-cloud-function.version>3.1.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.1.0-M4</spring-cloud-function.version>
 		<wrapper.version>1.0.17.RELEASE</wrapper.version>
 	</properties>
 
diff --git a/spring-cloud-function-deployer/src/it/bootjar-multi/pom.xml b/spring-cloud-function-deployer/src/it/bootjar-multi/pom.xml
index 01d09e934..3633e7482 100644
--- a/spring-cloud-function-deployer/src/it/bootjar-multi/pom.xml
+++ b/spring-cloud-function-deployer/src/it/bootjar-multi/pom.xml
@@ -18,7 +18,7 @@
 
 	<properties>
 		<java.version>1.8</java.version>
-		<spring-cloud-function.version>3.1.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.1.0-M4</spring-cloud-function.version>
 		<wrapper.version>1.0.17.RELEASE</wrapper.version>
 	</properties>
 
diff --git a/spring-cloud-function-deployer/src/it/bootjar/pom.xml b/spring-cloud-function-deployer/src/it/bootjar/pom.xml
index 3c6ca8195..04daf6337 100644
--- a/spring-cloud-function-deployer/src/it/bootjar/pom.xml
+++ b/spring-cloud-function-deployer/src/it/bootjar/pom.xml
@@ -18,7 +18,7 @@
 
 	<properties>
 		<java.version>1.8</java.version>
-		<spring-cloud-function.version>3.1.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.1.0-M4</spring-cloud-function.version>
 		<wrapper.version>1.0.17.RELEASE</wrapper.version>
 	</properties>
 
diff --git a/spring-cloud-function-deployer/src/it/bootjarnostart/pom.xml b/spring-cloud-function-deployer/src/it/bootjarnostart/pom.xml
index 0170b8642..bec0e6f99 100644
--- a/spring-cloud-function-deployer/src/it/bootjarnostart/pom.xml
+++ b/spring-cloud-function-deployer/src/it/bootjarnostart/pom.xml
@@ -18,7 +18,7 @@
 
 	<properties>
 		<java.version>1.8</java.version>
-		<spring-cloud-function.version>3.1.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.1.0-M4</spring-cloud-function.version>
 		<wrapper.version>1.0.17.RELEASE</wrapper.version>
 	</properties>
 
diff --git a/spring-cloud-function-kotlin/pom.xml b/spring-cloud-function-kotlin/pom.xml
index a3e540a59..122981555 100644
--- a/spring-cloud-function-kotlin/pom.xml
+++ b/spring-cloud-function-kotlin/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-function-parent</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M4</version>
 	</parent>
 
 	<dependencies>
diff --git a/spring-cloud-function-rsocket/pom.xml b/spring-cloud-function-rsocket/pom.xml
index f8621f8a4..af514e1c2 100644
--- a/spring-cloud-function-rsocket/pom.xml
+++ b/spring-cloud-function-rsocket/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-function-parent</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M4</version>
 	</parent>
 
 	<properties>
diff --git a/spring-cloud-function-samples/function-sample-aws-custom/pom.xml b/spring-cloud-function-samples/function-sample-aws-custom/pom.xml
index f71bca660..e5f5deef8 100644
--- a/spring-cloud-function-samples/function-sample-aws-custom/pom.xml
+++ b/spring-cloud-function-samples/function-sample-aws-custom/pom.xml
@@ -17,7 +17,7 @@
 	<properties>
 		<java.version>1.8</java.version>
 		<wrapper.version>1.0.22.RELEASE</wrapper.version>
-		<spring-cloud-function.version>3.1.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.1.0-M4</spring-cloud-function.version>
 	</properties>
 
 	<dependencies>
diff --git a/spring-cloud-function-samples/function-sample-aws/pom.xml b/spring-cloud-function-samples/function-sample-aws/pom.xml
index 00a71ae5a..32c36b952 100644
--- a/spring-cloud-function-samples/function-sample-aws/pom.xml
+++ b/spring-cloud-function-samples/function-sample-aws/pom.xml
@@ -25,7 +25,7 @@
 		<java.version>1.8</java.version>
 		<wrapper.version>1.0.17.RELEASE</wrapper.version>
 		<aws-lambda-events.version>2.0.2</aws-lambda-events.version>
-		<spring-cloud-function.version>3.1.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.1.0-M4</spring-cloud-function.version>
 	</properties>
 
 	<dependencies>
diff --git a/spring-cloud-function-samples/function-sample-compiler/pom.xml b/spring-cloud-function-samples/function-sample-compiler/pom.xml
index 10e288d06..62ae056e1 100644
--- a/spring-cloud-function-samples/function-sample-compiler/pom.xml
+++ b/spring-cloud-function-samples/function-sample-compiler/pom.xml
@@ -20,7 +20,7 @@
 
 	<properties>
 		<java.version>1.8</java.version>
-		<spring-cloud-function.version>3.1.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.1.0-M4</spring-cloud-function.version>
 		<reactor.version>3.1.2.RELEASE</reactor.version>
 		<wrapper.version>1.0.17.RELEASE</wrapper.version>
 	</properties>
diff --git a/spring-cloud-function-samples/function-sample-pof/pom.xml b/spring-cloud-function-samples/function-sample-pof/pom.xml
index 7adca5778..f6a09792e 100644
--- a/spring-cloud-function-samples/function-sample-pof/pom.xml
+++ b/spring-cloud-function-samples/function-sample-pof/pom.xml
@@ -22,7 +22,7 @@
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<java.version>1.8</java.version>
 		<reactor.version>3.1.2.RELEASE</reactor.version>
-		<spring-cloud-function.version>3.1.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.1.0-M4</spring-cloud-function.version>
 	</properties>
 
 	<dependencies>
diff --git a/spring-cloud-function-samples/function-sample-pojo/pom.xml b/spring-cloud-function-samples/function-sample-pojo/pom.xml
index 06ef53af2..5c27edce4 100644
--- a/spring-cloud-function-samples/function-sample-pojo/pom.xml
+++ b/spring-cloud-function-samples/function-sample-pojo/pom.xml
@@ -20,7 +20,7 @@
 
 	<properties>
 		<java.version>1.8</java.version>
-		<spring-cloud-function.version>3.1.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.1.0-M4</spring-cloud-function.version>
 		<wrapper.version>1.0.21.RELEASE</wrapper.version>
 	</properties>
 
diff --git a/spring-cloud-function-samples/function-sample-spring-integration/pom.xml b/spring-cloud-function-samples/function-sample-spring-integration/pom.xml
index 0533fbec6..f9764d5b7 100644
--- a/spring-cloud-function-samples/function-sample-spring-integration/pom.xml
+++ b/spring-cloud-function-samples/function-sample-spring-integration/pom.xml
@@ -20,7 +20,7 @@
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<java.version>1.8</java.version>
-		<spring-cloud-function.version>3.1.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.1.0-M4</spring-cloud-function.version>
 	</properties>
 
 	<dependencies>
diff --git a/spring-cloud-function-samples/function-sample-supplier-exporter/pom.xml b/spring-cloud-function-samples/function-sample-supplier-exporter/pom.xml
index e2bf29d5f..5695f9c7a 100644
--- a/spring-cloud-function-samples/function-sample-supplier-exporter/pom.xml
+++ b/spring-cloud-function-samples/function-sample-supplier-exporter/pom.xml
@@ -20,7 +20,7 @@
 
 	<properties>
 		<java.version>1.8</java.version>
-		<spring-cloud-function.version>3.1.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.1.0-M4</spring-cloud-function.version>
 	</properties>
 
 	<dependencies>
diff --git a/spring-cloud-function-samples/function-sample-task/pom.xml b/spring-cloud-function-samples/function-sample-task/pom.xml
index f2093fc3e..9afc6931c 100644
--- a/spring-cloud-function-samples/function-sample-task/pom.xml
+++ b/spring-cloud-function-samples/function-sample-task/pom.xml
@@ -20,7 +20,7 @@
 
 	<properties>
 		<java.version>1.8</java.version>
-		<spring-cloud-function.version>3.1.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.1.0-M4</spring-cloud-function.version>
 		<wrapper.version>1.0.10.RELEASE</wrapper.version>
 		<reactor.version>3.1.2.RELEASE</reactor.version>
 	</properties>
diff --git a/spring-cloud-function-samples/function-sample/pom.xml b/spring-cloud-function-samples/function-sample/pom.xml
index 0c0275e0e..0c2372591 100644
--- a/spring-cloud-function-samples/function-sample/pom.xml
+++ b/spring-cloud-function-samples/function-sample/pom.xml
@@ -20,7 +20,7 @@
 
 	<properties>
 		<java.version>1.8</java.version>
-		<spring-cloud-function.version>3.1.0-SNAPSHOT</spring-cloud-function.version>
+		<spring-cloud-function.version>3.1.0-M4</spring-cloud-function.version>
 		<wrapper.version>1.0.17.RELEASE</wrapper.version>
 	</properties>
 
diff --git a/spring-cloud-function-samples/pom.xml b/spring-cloud-function-samples/pom.xml
index 6356fe91d..b9bdd1dd6 100644
--- a/spring-cloud-function-samples/pom.xml
+++ b/spring-cloud-function-samples/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-function-parent</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M4</version>
 	</parent>
 
 	<modules>
diff --git a/spring-cloud-function-task/pom.xml b/spring-cloud-function-task/pom.xml
index f9c58bd2f..9886c7637 100644
--- a/spring-cloud-function-task/pom.xml
+++ b/spring-cloud-function-task/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-function-parent</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M4</version>
 	</parent>
 
 	<dependencies>
diff --git a/spring-cloud-function-web/pom.xml b/spring-cloud-function-web/pom.xml
index c405facd0..ff5821fa5 100644
--- a/spring-cloud-function-web/pom.xml
+++ b/spring-cloud-function-web/pom.xml
@@ -12,7 +12,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-function-parent</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M4</version>
 	</parent>
 
 	<dependencies>
diff --git a/spring-cloud-starter-function-web/pom.xml b/spring-cloud-starter-function-web/pom.xml
index c21c71d81..8d0587fd7 100644
--- a/spring-cloud-starter-function-web/pom.xml
+++ b/spring-cloud-starter-function-web/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-function-parent</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M4</version>
 		<relativePath>..</relativePath>
 	</parent>
 	<artifactId>spring-cloud-starter-function-web</artifactId>
diff --git a/spring-cloud-starter-function-webflux/pom.xml b/spring-cloud-starter-function-webflux/pom.xml
index 98a78d6fa..f8fd6b21e 100644
--- a/spring-cloud-starter-function-webflux/pom.xml
+++ b/spring-cloud-starter-function-webflux/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-function-parent</artifactId>
-		<version>3.1.0-SNAPSHOT</version>
+		<version>3.1.0-M4</version>
 	</parent>
 	<artifactId>spring-cloud-starter-function-webflux</artifactId>
 	<name>spring-cloud-starter-function-webflux</name>