diff --git a/applications/pom.xml b/applications/pom.xml
index 1443a38c..0e159ba3 100644
--- a/applications/pom.xml
+++ b/applications/pom.xml
@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.springframework.cloud.stream.app</groupId>
     <artifactId>applications</artifactId>
-    <version>6.0.0-SNAPSHOT</version>
+    <version>5.1.0-SNAPSHOT</version>
     <name>applications</name>
     <description>Infrastructure for stream applications</description>
     <packaging>pom</packaging>
diff --git a/applications/processor/aggregator-processor/pom.xml b/applications/processor/aggregator-processor/pom.xml
index c46ab605..369bdb1d 100644
--- a/applications/processor/aggregator-processor/pom.xml
+++ b/applications/processor/aggregator-processor/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/processor/bridge-processor/pom.xml b/applications/processor/bridge-processor/pom.xml
index 1cac627e..419ea3d7 100644
--- a/applications/processor/bridge-processor/pom.xml
+++ b/applications/processor/bridge-processor/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/processor/filter-processor/pom.xml b/applications/processor/filter-processor/pom.xml
index 47e5eaf4..8c6c2261 100644
--- a/applications/processor/filter-processor/pom.xml
+++ b/applications/processor/filter-processor/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/processor/groovy-processor/pom.xml b/applications/processor/groovy-processor/pom.xml
index 66f88a15..34e0244b 100644
--- a/applications/processor/groovy-processor/pom.xml
+++ b/applications/processor/groovy-processor/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/processor/header-enricher-processor/pom.xml b/applications/processor/header-enricher-processor/pom.xml
index dad6ec98..5d55f3a3 100644
--- a/applications/processor/header-enricher-processor/pom.xml
+++ b/applications/processor/header-enricher-processor/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/processor/header-filter-processor/pom.xml b/applications/processor/header-filter-processor/pom.xml
index 204c9e67..3f3cce10 100644
--- a/applications/processor/header-filter-processor/pom.xml
+++ b/applications/processor/header-filter-processor/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/processor/http-request-processor/pom.xml b/applications/processor/http-request-processor/pom.xml
index 7967e331..247da656 100644
--- a/applications/processor/http-request-processor/pom.xml
+++ b/applications/processor/http-request-processor/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/processor/pom.xml b/applications/processor/pom.xml
index ea9ed6dd..47f9a3e5 100644
--- a/applications/processor/pom.xml
+++ b/applications/processor/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>org.springframework.cloud.stream.app</groupId>
     <artifactId>processor</artifactId>
-    <version>6.0.0-SNAPSHOT</version>
+    <version>5.1.0-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <modules>
diff --git a/applications/processor/script-processor/pom.xml b/applications/processor/script-processor/pom.xml
index 3fc981f2..d3ca5554 100644
--- a/applications/processor/script-processor/pom.xml
+++ b/applications/processor/script-processor/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/processor/splitter-processor/pom.xml b/applications/processor/splitter-processor/pom.xml
index 88eb16dd..85a97cb1 100644
--- a/applications/processor/splitter-processor/pom.xml
+++ b/applications/processor/splitter-processor/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/processor/transform-processor/pom.xml b/applications/processor/transform-processor/pom.xml
index 8e7ff219..2cb771da 100644
--- a/applications/processor/transform-processor/pom.xml
+++ b/applications/processor/transform-processor/pom.xml
@@ -10,7 +10,7 @@
 	<parent>
 		<groupId>org.springframework.cloud.stream.app</groupId>
 		<artifactId>stream-applications-core</artifactId>
-		<version>6.0.0-SNAPSHOT</version>
+		<version>5.1.0-SNAPSHOT</version>
 		<relativePath>../../stream-applications-core/pom.xml</relativePath>
 	</parent>
 
diff --git a/applications/processor/twitter-trend-processor/pom.xml b/applications/processor/twitter-trend-processor/pom.xml
index 2e6bc86f..a5e0055c 100644
--- a/applications/processor/twitter-trend-processor/pom.xml
+++ b/applications/processor/twitter-trend-processor/pom.xml
@@ -6,12 +6,12 @@
     <artifactId>twitter-trend-processor</artifactId>
     <name>twitter-trend-processor</name>
     <description>twitter trend processor apps</description>
-    <version>6.0.0-SNAPSHOT</version>
+    <version>5.1.0-SNAPSHOT</version>
 
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/analytics-sink/pom.xml b/applications/sink/analytics-sink/pom.xml
index e1e4ffa5..e688b364 100644
--- a/applications/sink/analytics-sink/pom.xml
+++ b/applications/sink/analytics-sink/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/cassandra-sink/pom.xml b/applications/sink/cassandra-sink/pom.xml
index 4f803291..0aa427b2 100644
--- a/applications/sink/cassandra-sink/pom.xml
+++ b/applications/sink/cassandra-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/elasticsearch-sink/pom.xml b/applications/sink/elasticsearch-sink/pom.xml
index fa8c3196..95ca41aa 100644
--- a/applications/sink/elasticsearch-sink/pom.xml
+++ b/applications/sink/elasticsearch-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/file-sink/pom.xml b/applications/sink/file-sink/pom.xml
index a6aec3fd..3ea98241 100644
--- a/applications/sink/file-sink/pom.xml
+++ b/applications/sink/file-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/ftp-sink/pom.xml b/applications/sink/ftp-sink/pom.xml
index fdb41020..772ffa8f 100644
--- a/applications/sink/ftp-sink/pom.xml
+++ b/applications/sink/ftp-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/jdbc-sink/pom.xml b/applications/sink/jdbc-sink/pom.xml
index cdc0b122..4321ed63 100644
--- a/applications/sink/jdbc-sink/pom.xml
+++ b/applications/sink/jdbc-sink/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/kafka-sink/pom.xml b/applications/sink/kafka-sink/pom.xml
index 222fa6d6..89344cf9 100644
--- a/applications/sink/kafka-sink/pom.xml
+++ b/applications/sink/kafka-sink/pom.xml
@@ -8,7 +8,7 @@
 	<parent>
 		<artifactId>stream-applications-core</artifactId>
 		<groupId>org.springframework.cloud.stream.app</groupId>
-		<version>6.0.0-SNAPSHOT</version>
+		<version>5.1.0-SNAPSHOT</version>
 		<relativePath>../../stream-applications-core/pom.xml</relativePath>
 	</parent>
 
diff --git a/applications/sink/log-sink/pom.xml b/applications/sink/log-sink/pom.xml
index 729ac6bc..b2313d16 100644
--- a/applications/sink/log-sink/pom.xml
+++ b/applications/sink/log-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/mongodb-sink/pom.xml b/applications/sink/mongodb-sink/pom.xml
index 0b5d8bdf..3142fb21 100644
--- a/applications/sink/mongodb-sink/pom.xml
+++ b/applications/sink/mongodb-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/mqtt-sink/pom.xml b/applications/sink/mqtt-sink/pom.xml
index 8c987572..e23cce39 100644
--- a/applications/sink/mqtt-sink/pom.xml
+++ b/applications/sink/mqtt-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/pgcopy-sink/pom.xml b/applications/sink/pgcopy-sink/pom.xml
index 2563e3a6..c9b3e3ce 100644
--- a/applications/sink/pgcopy-sink/pom.xml
+++ b/applications/sink/pgcopy-sink/pom.xml
@@ -10,7 +10,7 @@
 	<parent>
 		<groupId>org.springframework.cloud.stream.app</groupId>
 		<artifactId>stream-applications-core</artifactId>
-		<version>6.0.0-SNAPSHOT</version>
+		<version>5.1.0-SNAPSHOT</version>
 		<relativePath>../../stream-applications-core/pom.xml</relativePath>
 	</parent>
 
diff --git a/applications/sink/pom.xml b/applications/sink/pom.xml
index 989a5679..ef301ff3 100644
--- a/applications/sink/pom.xml
+++ b/applications/sink/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>org.springframework.cloud.stream.app</groupId>
     <artifactId>sink</artifactId>
-    <version>6.0.0-SNAPSHOT</version>
+    <version>5.1.0-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <modules>
diff --git a/applications/sink/rabbit-sink/pom.xml b/applications/sink/rabbit-sink/pom.xml
index 9cb19ac1..cdcaa39e 100644
--- a/applications/sink/rabbit-sink/pom.xml
+++ b/applications/sink/rabbit-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/redis-sink/pom.xml b/applications/sink/redis-sink/pom.xml
index 47235808..298d2315 100644
--- a/applications/sink/redis-sink/pom.xml
+++ b/applications/sink/redis-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/router-sink/pom.xml b/applications/sink/router-sink/pom.xml
index c8ae6969..ff41d38d 100644
--- a/applications/sink/router-sink/pom.xml
+++ b/applications/sink/router-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/rsocket-sink/pom.xml b/applications/sink/rsocket-sink/pom.xml
index 698b9ad6..05387406 100644
--- a/applications/sink/rsocket-sink/pom.xml
+++ b/applications/sink/rsocket-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/s3-sink/pom.xml b/applications/sink/s3-sink/pom.xml
index 0e82cfa3..cff903c3 100644
--- a/applications/sink/s3-sink/pom.xml
+++ b/applications/sink/s3-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/sftp-sink/pom.xml b/applications/sink/sftp-sink/pom.xml
index 6c9c45fe..7b7004f9 100644
--- a/applications/sink/sftp-sink/pom.xml
+++ b/applications/sink/sftp-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/tcp-sink/pom.xml b/applications/sink/tcp-sink/pom.xml
index e84ab5c2..b85e6e39 100644
--- a/applications/sink/tcp-sink/pom.xml
+++ b/applications/sink/tcp-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/throughput-sink/pom.xml b/applications/sink/throughput-sink/pom.xml
index c1c68c91..9732a1e0 100644
--- a/applications/sink/throughput-sink/pom.xml
+++ b/applications/sink/throughput-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/twitter-message-sink/pom.xml b/applications/sink/twitter-message-sink/pom.xml
index 6561f66c..005952f5 100644
--- a/applications/sink/twitter-message-sink/pom.xml
+++ b/applications/sink/twitter-message-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/twitter-update-sink/pom.xml b/applications/sink/twitter-update-sink/pom.xml
index 0d498aef..fbb7a0f4 100644
--- a/applications/sink/twitter-update-sink/pom.xml
+++ b/applications/sink/twitter-update-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/wavefront-sink/pom.xml b/applications/sink/wavefront-sink/pom.xml
index e72d71b9..4bf83046 100644
--- a/applications/sink/wavefront-sink/pom.xml
+++ b/applications/sink/wavefront-sink/pom.xml
@@ -10,7 +10,7 @@
 	<parent>
 		<groupId>org.springframework.cloud.stream.app</groupId>
 		<artifactId>stream-applications-core</artifactId>
-		<version>6.0.0-SNAPSHOT</version>
+		<version>5.1.0-SNAPSHOT</version>
 		<relativePath>../../stream-applications-core/pom.xml</relativePath>
 	</parent>
 
diff --git a/applications/sink/websocket-sink/pom.xml b/applications/sink/websocket-sink/pom.xml
index 6b0092aa..5e57a08c 100644
--- a/applications/sink/websocket-sink/pom.xml
+++ b/applications/sink/websocket-sink/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/xmpp-sink/pom.xml b/applications/sink/xmpp-sink/pom.xml
index a5fd67cd..41168dde 100644
--- a/applications/sink/xmpp-sink/pom.xml
+++ b/applications/sink/xmpp-sink/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/sink/zeromq-sink/pom.xml b/applications/sink/zeromq-sink/pom.xml
index 3b143a90..3a66628f 100644
--- a/applications/sink/zeromq-sink/pom.xml
+++ b/applications/sink/zeromq-sink/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/debezium-source/pom.xml b/applications/source/debezium-source/pom.xml
index eb66b173..5a236925 100644
--- a/applications/source/debezium-source/pom.xml
+++ b/applications/source/debezium-source/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud.stream.app</groupId>
 		<artifactId>stream-applications-core</artifactId>
-		<version>6.0.0-SNAPSHOT</version>
+		<version>5.1.0-SNAPSHOT</version>
 		<relativePath>../../stream-applications-core/pom.xml</relativePath>
 	</parent>
 
diff --git a/applications/source/file-source/pom.xml b/applications/source/file-source/pom.xml
index 7322a138..585dea34 100644
--- a/applications/source/file-source/pom.xml
+++ b/applications/source/file-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/ftp-source/pom.xml b/applications/source/ftp-source/pom.xml
index 09e69662..e92d3f61 100644
--- a/applications/source/ftp-source/pom.xml
+++ b/applications/source/ftp-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/http-source/pom.xml b/applications/source/http-source/pom.xml
index e6f5df93..30cc15d2 100644
--- a/applications/source/http-source/pom.xml
+++ b/applications/source/http-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/jdbc-source/pom.xml b/applications/source/jdbc-source/pom.xml
index 05661481..d636b765 100644
--- a/applications/source/jdbc-source/pom.xml
+++ b/applications/source/jdbc-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/jms-source/pom.xml b/applications/source/jms-source/pom.xml
index 82c8335b..2d90313c 100644
--- a/applications/source/jms-source/pom.xml
+++ b/applications/source/jms-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/kafka-source/pom.xml b/applications/source/kafka-source/pom.xml
index 3c01eb02..30872e26 100644
--- a/applications/source/kafka-source/pom.xml
+++ b/applications/source/kafka-source/pom.xml
@@ -8,7 +8,7 @@
 	<parent>
 		<artifactId>stream-applications-core</artifactId>
 		<groupId>org.springframework.cloud.stream.app</groupId>
-		<version>6.0.0-SNAPSHOT</version>
+		<version>5.1.0-SNAPSHOT</version>
 		<relativePath>../../stream-applications-core/pom.xml</relativePath>
 	</parent>
 
diff --git a/applications/source/load-generator-source/pom.xml b/applications/source/load-generator-source/pom.xml
index 08d77b3c..b8a42658 100644
--- a/applications/source/load-generator-source/pom.xml
+++ b/applications/source/load-generator-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/mail-source/pom.xml b/applications/source/mail-source/pom.xml
index 60620494..fd6b2381 100644
--- a/applications/source/mail-source/pom.xml
+++ b/applications/source/mail-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/mongodb-source/pom.xml b/applications/source/mongodb-source/pom.xml
index a596c803..f1ebd970 100644
--- a/applications/source/mongodb-source/pom.xml
+++ b/applications/source/mongodb-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/mqtt-source/pom.xml b/applications/source/mqtt-source/pom.xml
index 6fdc46fc..b2471623 100644
--- a/applications/source/mqtt-source/pom.xml
+++ b/applications/source/mqtt-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/pom.xml b/applications/source/pom.xml
index 6b793341..7e5d4330 100644
--- a/applications/source/pom.xml
+++ b/applications/source/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>org.springframework.cloud.stream.app</groupId>
     <artifactId>source</artifactId>
-    <version>6.0.0-SNAPSHOT</version>
+    <version>5.1.0-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <modules>
diff --git a/applications/source/rabbit-source/pom.xml b/applications/source/rabbit-source/pom.xml
index 1267787b..12ff07e6 100644
--- a/applications/source/rabbit-source/pom.xml
+++ b/applications/source/rabbit-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/s3-source/pom.xml b/applications/source/s3-source/pom.xml
index 01d77988..58d93bbb 100644
--- a/applications/source/s3-source/pom.xml
+++ b/applications/source/s3-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/sftp-source/pom.xml b/applications/source/sftp-source/pom.xml
index 3792a948..eff846b7 100644
--- a/applications/source/sftp-source/pom.xml
+++ b/applications/source/sftp-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/syslog-source/pom.xml b/applications/source/syslog-source/pom.xml
index eb118962..e469495f 100644
--- a/applications/source/syslog-source/pom.xml
+++ b/applications/source/syslog-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/tcp-source/pom.xml b/applications/source/tcp-source/pom.xml
index 9363badf..51271aaa 100644
--- a/applications/source/tcp-source/pom.xml
+++ b/applications/source/tcp-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/time-source/pom.xml b/applications/source/time-source/pom.xml
index 5d3eb87a..b288f2db 100644
--- a/applications/source/time-source/pom.xml
+++ b/applications/source/time-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/twitter-message-source/pom.xml b/applications/source/twitter-message-source/pom.xml
index 7f80f9ea..b9848c9a 100644
--- a/applications/source/twitter-message-source/pom.xml
+++ b/applications/source/twitter-message-source/pom.xml
@@ -10,7 +10,7 @@
 	<parent>
 		<groupId>org.springframework.cloud.stream.app</groupId>
 		<artifactId>stream-applications-core</artifactId>
-		<version>6.0.0-SNAPSHOT</version>
+		<version>5.1.0-SNAPSHOT</version>
 		<relativePath>../../stream-applications-core/pom.xml</relativePath>
 	</parent>
 
diff --git a/applications/source/twitter-search-source/pom.xml b/applications/source/twitter-search-source/pom.xml
index 0274eb0f..0872c2c3 100644
--- a/applications/source/twitter-search-source/pom.xml
+++ b/applications/source/twitter-search-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/twitter-stream-source/pom.xml b/applications/source/twitter-stream-source/pom.xml
index ed77b544..c0888341 100644
--- a/applications/source/twitter-stream-source/pom.xml
+++ b/applications/source/twitter-stream-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/websocket-source/pom.xml b/applications/source/websocket-source/pom.xml
index 09ce2af3..198ff4d9 100644
--- a/applications/source/websocket-source/pom.xml
+++ b/applications/source/websocket-source/pom.xml
@@ -10,7 +10,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/xmpp-source/pom.xml b/applications/source/xmpp-source/pom.xml
index 8b8d41ca..92df3ecb 100644
--- a/applications/source/xmpp-source/pom.xml
+++ b/applications/source/xmpp-source/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/source/zeromq-source/pom.xml b/applications/source/zeromq-source/pom.xml
index aa187114..b8994998 100644
--- a/applications/source/zeromq-source/pom.xml
+++ b/applications/source/zeromq-source/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-core/pom.xml</relativePath>
     </parent>
 
diff --git a/applications/stream-applications-core/pom.xml b/applications/stream-applications-core/pom.xml
index e157b7c3..0339b1ba 100644
--- a/applications/stream-applications-core/pom.xml
+++ b/applications/stream-applications-core/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-build</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../../stream-applications-build/pom.xml</relativePath>
     </parent>
 
@@ -16,7 +16,7 @@
     <packaging>pom</packaging>
 
     <properties>
-        <stream-apps-core.version>6.0.0-SNAPSHOT</stream-apps-core.version>
+        <stream-apps-core.version>5.1.0-SNAPSHOT</stream-apps-core.version>
         <java-functions.version>5.1.0-SNAPSHOT</java-functions.version>
         <prometheus-rsocket.version>2.0.0-M4</prometheus-rsocket.version>
         <spring-cloud-dataflow-apps-generator-plugin.version>1.1.0-SNAPSHOT</spring-cloud-dataflow-apps-generator-plugin.version>
diff --git a/applications/stream-applications-core/stream-applications-composite-function-support/pom.xml b/applications/stream-applications-core/stream-applications-composite-function-support/pom.xml
index 16af2271..e36d2838 100644
--- a/applications/stream-applications-core/stream-applications-composite-function-support/pom.xml
+++ b/applications/stream-applications-core/stream-applications-composite-function-support/pom.xml
@@ -23,7 +23,7 @@
     <parent>
 		<groupId>org.springframework.cloud.stream.app</groupId>
 		<artifactId>stream-applications-core</artifactId>
-		<version>6.0.0-SNAPSHOT</version>
+		<version>5.1.0-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>stream-applications-composite-function-support</artifactId>
diff --git a/applications/stream-applications-core/stream-applications-micrometer-common/pom.xml b/applications/stream-applications-core/stream-applications-micrometer-common/pom.xml
index b53ed868..0a3ce945 100644
--- a/applications/stream-applications-core/stream-applications-micrometer-common/pom.xml
+++ b/applications/stream-applications-core/stream-applications-micrometer-common/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>stream-applications-micrometer-common</artifactId>
diff --git a/applications/stream-applications-core/stream-applications-postprocessor-common/pom.xml b/applications/stream-applications-core/stream-applications-postprocessor-common/pom.xml
index cfce00e7..3eb757b3 100644
--- a/applications/stream-applications-core/stream-applications-postprocessor-common/pom.xml
+++ b/applications/stream-applications-core/stream-applications-postprocessor-common/pom.xml
@@ -6,7 +6,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>stream-applications-postprocessor-common</artifactId>
diff --git a/applications/stream-applications-core/stream-applications-security-common/pom.xml b/applications/stream-applications-core/stream-applications-security-common/pom.xml
index 07f38458..4e0e5665 100644
--- a/applications/stream-applications-core/stream-applications-security-common/pom.xml
+++ b/applications/stream-applications-core/stream-applications-security-common/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>stream-applications-security-common</artifactId>
diff --git a/applications/stream-applications-core/stream-applications-test-support/pom.xml b/applications/stream-applications-core/stream-applications-test-support/pom.xml
index 382e3f9f..85d77351 100644
--- a/applications/stream-applications-core/stream-applications-test-support/pom.xml
+++ b/applications/stream-applications-core/stream-applications-test-support/pom.xml
@@ -6,7 +6,7 @@
 	<parent>
 		<groupId>org.springframework.cloud.stream.app</groupId>
 		<artifactId>stream-applications-core</artifactId>
-		<version>6.0.0-SNAPSHOT</version>
+		<version>5.1.0-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>stream-applications-test-support</artifactId>
diff --git a/applications/stream-applications-integration-tests/pom.xml b/applications/stream-applications-integration-tests/pom.xml
index 10d02cbd..12017626 100644
--- a/applications/stream-applications-integration-tests/pom.xml
+++ b/applications/stream-applications-integration-tests/pom.xml
@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>org.springframework.cloud.stream.app</groupId>
 		<artifactId>stream-applications-core</artifactId>
-		<version>6.0.0-SNAPSHOT</version>
+		<version>5.1.0-SNAPSHOT</version>
 		<relativePath>../stream-applications-core/pom.xml</relativePath>
 	</parent>
 
diff --git a/pom.xml b/pom.xml
index 5df0b4af..16f57fb8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>org.springframework.cloud.stream.app</groupId>
     <artifactId>stream-applications</artifactId>
-    <version>6.0.0-SNAPSHOT</version>
+    <version>5.1.0-SNAPSHOT</version>
     <name>stream-applications</name>
     <description>Infrastructure for Stream Applications</description>
     <packaging>pom</packaging>
diff --git a/stream-applications-build/pom.xml b/stream-applications-build/pom.xml
index 63f8986d..60513b66 100644
--- a/stream-applications-build/pom.xml
+++ b/stream-applications-build/pom.xml
@@ -5,7 +5,7 @@
 
     <groupId>org.springframework.cloud.stream.app</groupId>
     <artifactId>stream-applications-build</artifactId>
-    <version>6.0.0-SNAPSHOT</version>
+    <version>5.1.0-SNAPSHOT</version>
     <name>stream-applications-build</name>
     <description>Common Parent for Stream Applications</description>
     <packaging>pom</packaging>
diff --git a/stream-applications-release-train/pom.xml b/stream-applications-release-train/pom.xml
index c81414fb..202e461c 100644
--- a/stream-applications-release-train/pom.xml
+++ b/stream-applications-release-train/pom.xml
@@ -8,7 +8,7 @@
     <parent>
         <groupId>org.springframework.cloud.stream.app</groupId>
         <artifactId>stream-applications-core</artifactId>
-        <version>6.0.0-SNAPSHOT</version>
+        <version>5.1.0-SNAPSHOT</version>
         <relativePath>../applications/stream-applications-core/pom.xml</relativePath>
     </parent>
 
@@ -18,7 +18,7 @@
     </modules>
 
     <properties>
-        <apps.version>6.0.0-SNAPSHOT</apps.version>
+        <apps.version>5.1.0-SNAPSHOT</apps.version>
         <apps.harbor.version>${apps.version}</apps.harbor.version>
         <apps.docker.tag>${apps.version}</apps.docker.tag>
     </properties>
diff --git a/versions.json b/versions.json
index 44bd8c22..b29d31d2 100644
--- a/versions.json
+++ b/versions.json
@@ -1,6 +1,6 @@
 {
-  "release_version": "6.0.0-SNAPSHOT",
-  "next_dev_version": "6.0.0-SNAPSHOT",
+  "release_version": "5.1.0-SNAPSHOT",
+  "next_dev_version": "5.1.0-SNAPSHOT",
   "release_train": {
     "release_version": "2025.0.0-SNAPSHOT",
     "next_dev_version": "2025.0.0-SNAPSHOT"