diff --git a/README.md b/README.md
index 66bbe34b..41613ab1 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,7 @@ For Maven users:
     <dependency>
         <groupId>org.springframework.ws</groupId>
         <artifactId>spring-ws-core</artifactId>
-        <version>2.1.5.BUILD-SNAPSHOT</version>
+        <version>2.2.0.BUILD-SNAPSHOT</version>
     </dependency>
 
 ## Building from Source
diff --git a/gradle.properties b/gradle.properties
index 9385ad11..f212918a 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1 +1 @@
-version=2.1.5.BUILD-SNAPSHOT
+version=2.2.0.BUILD-SNAPSHOT
diff --git a/spring-ws-core/src/main/java/org/springframework/ws/server/endpoint/annotation/PayloadRoots.java b/spring-ws-core/src/main/java/org/springframework/ws/server/endpoint/annotation/PayloadRoots.java
index f21f321e..0b46e572 100644
--- a/spring-ws-core/src/main/java/org/springframework/ws/server/endpoint/annotation/PayloadRoots.java
+++ b/spring-ws-core/src/main/java/org/springframework/ws/server/endpoint/annotation/PayloadRoots.java
@@ -27,7 +27,7 @@ import java.lang.annotation.Target;
  *
  * @author Arjen Poutsma
  * @see org.springframework.ws.server.endpoint.mapping.PayloadRootAnnotationMethodEndpointMapping
- * @since 2.1.5
+ * @since 2.2
  */
 @Target(ElementType.METHOD)
 @Retention(RetentionPolicy.RUNTIME)
diff --git a/spring-ws-core/src/main/java/org/springframework/ws/server/endpoint/mapping/AbstractMethodEndpointMapping.java b/spring-ws-core/src/main/java/org/springframework/ws/server/endpoint/mapping/AbstractMethodEndpointMapping.java
index cf7ddab3..90a17248 100644
--- a/spring-ws-core/src/main/java/org/springframework/ws/server/endpoint/mapping/AbstractMethodEndpointMapping.java
+++ b/spring-ws-core/src/main/java/org/springframework/ws/server/endpoint/mapping/AbstractMethodEndpointMapping.java
@@ -201,7 +201,7 @@ public abstract class AbstractMethodEndpointMapping<T> extends AbstractEndpointM
      *
      * @param method the method
      * @return a list of registration keys
-     * @since 2.1.5
+     * @since 2.2
      */
     protected List<T> getLookupKeysForMethod(Method method) {
 	    T key = getLookupKeyForMethod(method);