diff --git a/pom.xml b/pom.xml
index 3fbb98cfe..7560c257a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,12 +3,12 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>spring-cloud-stream-parent</artifactId>
-    <version>1.3.0.BUILD-SNAPSHOT</version>
+    <version>1.3.0.RC1</version>
     <packaging>pom</packaging>
     <parent>
         <groupId>org.springframework.cloud</groupId>
         <artifactId>spring-cloud-build</artifactId>
-        <version>1.3.4.BUILD-SNAPSHOT</version>
+        <version>1.3.5.RELEASE</version>
         <relativePath/>
     </parent>
     <scm>
@@ -23,7 +23,7 @@
         <rxjava-reactive-streams.version>1.2.1</rxjava-reactive-streams.version>
         <spring.tuple.version>1.0.0.RELEASE</spring.tuple.version>
         <spring.integration.tuple.version>1.0.0.RELEASE</spring.integration.tuple.version>
-        <reactor.version>Bismuth-M2</reactor.version>
+        <reactor.version>Bismuth-M4</reactor.version>
         <kryo-shaded.version>3.0.3</kryo-shaded.version>
         <objenesis.version>2.1</objenesis.version>
     </properties>
diff --git a/spring-cloud-stream-binder-test/pom.xml b/spring-cloud-stream-binder-test/pom.xml
index 0db2efae3..7a3fe9aba 100644
--- a/spring-cloud-stream-binder-test/pom.xml
+++ b/spring-cloud-stream-binder-test/pom.xml
@@ -11,7 +11,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-stream-parent</artifactId>
-		<version>1.3.0.BUILD-SNAPSHOT</version>
+		<version>1.3.0.RC1</version>
 	</parent>
 
 	<dependencies>
diff --git a/spring-cloud-stream-codec/pom.xml b/spring-cloud-stream-codec/pom.xml
index da38135cc..2c2f8e5bb 100644
--- a/spring-cloud-stream-codec/pom.xml
+++ b/spring-cloud-stream-codec/pom.xml
@@ -10,7 +10,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-stream-parent</artifactId>
-		<version>1.3.0.BUILD-SNAPSHOT</version>
+		<version>1.3.0.RC1</version>
 	</parent>
 
 	<dependencies>
diff --git a/spring-cloud-stream-core-docs/pom.xml b/spring-cloud-stream-core-docs/pom.xml
index 244b25cb9..b13cafbf2 100644
--- a/spring-cloud-stream-core-docs/pom.xml
+++ b/spring-cloud-stream-core-docs/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-stream-parent</artifactId>
-		<version>1.3.0.BUILD-SNAPSHOT</version>
+		<version>1.3.0.RC1</version>
 	</parent>
 	<artifactId>spring-cloud-stream-core-docs</artifactId>
 	<name>spring-cloud-stream-core-docs</name>
diff --git a/spring-cloud-stream-integration-tests/pom.xml b/spring-cloud-stream-integration-tests/pom.xml
index 07b1ccbb7..56b96b968 100644
--- a/spring-cloud-stream-integration-tests/pom.xml
+++ b/spring-cloud-stream-integration-tests/pom.xml
@@ -10,7 +10,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-stream-parent</artifactId>
-		<version>1.3.0.BUILD-SNAPSHOT</version>
+		<version>1.3.0.RC1</version>
 	</parent>
 
 	<dependencies>
diff --git a/spring-cloud-stream-metrics/pom.xml b/spring-cloud-stream-metrics/pom.xml
index 2f2fffdb3..dd3568de8 100644
--- a/spring-cloud-stream-metrics/pom.xml
+++ b/spring-cloud-stream-metrics/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <groupId>org.springframework.cloud</groupId>
         <artifactId>spring-cloud-stream-parent</artifactId>
-        <version>1.3.0.BUILD-SNAPSHOT</version>
+        <version>1.3.0.RC1</version>
     </parent>
 
     <dependencies>
diff --git a/spring-cloud-stream-reactive/pom.xml b/spring-cloud-stream-reactive/pom.xml
index cdadda4e6..0f3d9fdf4 100644
--- a/spring-cloud-stream-reactive/pom.xml
+++ b/spring-cloud-stream-reactive/pom.xml
@@ -3,7 +3,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-stream-parent</artifactId>
-		<version>1.3.0.BUILD-SNAPSHOT</version>
+		<version>1.3.0.RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 
diff --git a/spring-cloud-stream-rxjava/pom.xml b/spring-cloud-stream-rxjava/pom.xml
index 07b6d5a82..0bdfc96cf 100644
--- a/spring-cloud-stream-rxjava/pom.xml
+++ b/spring-cloud-stream-rxjava/pom.xml
@@ -10,7 +10,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-stream-parent</artifactId>
-		<version>1.3.0.BUILD-SNAPSHOT</version>
+		<version>1.3.0.RC1</version>
 	</parent>
 
 	<dependencies>
diff --git a/spring-cloud-stream-schema-server/pom.xml b/spring-cloud-stream-schema-server/pom.xml
index 3fc030c61..9b46c8efe 100644
--- a/spring-cloud-stream-schema-server/pom.xml
+++ b/spring-cloud-stream-schema-server/pom.xml
@@ -7,7 +7,7 @@
 	<parent>
 		<artifactId>spring-cloud-stream-parent</artifactId>
 		<groupId>org.springframework.cloud</groupId>
-		<version>1.3.0.BUILD-SNAPSHOT</version>
+		<version>1.3.0.RC1</version>
 	</parent>
 
 	<dependencies>
diff --git a/spring-cloud-stream-schema/pom.xml b/spring-cloud-stream-schema/pom.xml
index eb00bc27b..06bfbbb8b 100644
--- a/spring-cloud-stream-schema/pom.xml
+++ b/spring-cloud-stream-schema/pom.xml
@@ -3,7 +3,7 @@
 	<parent>
 		<artifactId>spring-cloud-stream-parent</artifactId>
 		<groupId>org.springframework.cloud</groupId>
-		<version>1.3.0.BUILD-SNAPSHOT</version>
+		<version>1.3.0.RC1</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 
diff --git a/spring-cloud-stream-test-support-internal/pom.xml b/spring-cloud-stream-test-support-internal/pom.xml
index 3cdb316ce..f712ffe63 100644
--- a/spring-cloud-stream-test-support-internal/pom.xml
+++ b/spring-cloud-stream-test-support-internal/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-stream-parent</artifactId>
-		<version>1.3.0.BUILD-SNAPSHOT</version>
+		<version>1.3.0.RC1</version>
 	</parent>
 	<artifactId>spring-cloud-stream-test-support-internal</artifactId>
 	<description>Set of classes and utility code that may assist in testing both
diff --git a/spring-cloud-stream-test-support/pom.xml b/spring-cloud-stream-test-support/pom.xml
index 1d6985112..aed4533d4 100644
--- a/spring-cloud-stream-test-support/pom.xml
+++ b/spring-cloud-stream-test-support/pom.xml
@@ -4,7 +4,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-stream-parent</artifactId>
-		<version>1.3.0.BUILD-SNAPSHOT</version>
+		<version>1.3.0.RC1</version>
 	</parent>
 	<artifactId>spring-cloud-stream-test-support</artifactId>
 	<description>A set of classes to ease testing of Spring Cloud Stream modules.</description>
diff --git a/spring-cloud-stream-tools/pom.xml b/spring-cloud-stream-tools/pom.xml
index 5ac7b8183..3af0a1678 100644
--- a/spring-cloud-stream-tools/pom.xml
+++ b/spring-cloud-stream-tools/pom.xml
@@ -4,12 +4,12 @@
     <parent>
         <groupId>org.springframework.cloud</groupId>
         <artifactId>spring-cloud-build</artifactId>
-        <version>1.3.4.BUILD-SNAPSHOT</version>
+        <version>1.3.5.RELEASE</version>
         <relativePath />
     </parent>
 
     <artifactId>spring-cloud-stream-tools</artifactId>
-    <version>1.3.0.BUILD-SNAPSHOT</version>
+    <version>1.3.0.RC1</version>
     <name>spring-cloud-stream-build-tools</name>
     <description>Spring Cloud Stream Build Tools</description>
 
diff --git a/spring-cloud-stream/pom.xml b/spring-cloud-stream/pom.xml
index 135797e36..032abef45 100644
--- a/spring-cloud-stream/pom.xml
+++ b/spring-cloud-stream/pom.xml
@@ -10,7 +10,7 @@
 	<parent>
 		<groupId>org.springframework.cloud</groupId>
 		<artifactId>spring-cloud-stream-parent</artifactId>
-		<version>1.3.0.BUILD-SNAPSHOT</version>
+		<version>1.3.0.RC1</version>
 	</parent>
 
 	<dependencies>
@@ -33,12 +33,10 @@
 		<dependency>
 			<groupId>org.springframework.integration</groupId>
 			<artifactId>spring-integration-core</artifactId>
-			<version>4.3.12.BUILD-SNAPSHOT</version>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework.integration</groupId>
 			<artifactId>spring-integration-jmx</artifactId>
-			<version>4.3.12.BUILD-SNAPSHOT</version>
 		</dependency>
 		<dependency>
 			<groupId>org.springframework</groupId>