diff --git a/api/pom.xml b/api/pom.xml
index 6efa9bf8..a6dc1683 100644
--- a/api/pom.xml
+++ b/api/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>de.valtech.aecu</groupId>
         <artifactId>aecu</artifactId>
-        <version>6.5.1-SNAPSHOT</version>
+        <version>6.5.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>aecu.api</artifactId>
diff --git a/api/src/main/java/de/valtech/aecu/api/groovy/console/bindings/ContentUpgrade.java b/api/src/main/java/de/valtech/aecu/api/groovy/console/bindings/ContentUpgrade.java
index 38ae58cb..9038ee20 100644
--- a/api/src/main/java/de/valtech/aecu/api/groovy/console/bindings/ContentUpgrade.java
+++ b/api/src/main/java/de/valtech/aecu/api/groovy/console/bindings/ContentUpgrade.java
@@ -134,10 +134,11 @@ public interface ContentUpgrade {
     ContentUpgrade filterByNotProperty(String name, Object value);
 
     /**
-     * Filters by matching a single property.
+     * Filters by matching a single property using a regular expression for the value. This is
+     * intended for single value properties.
      *
      * @param name  property name
-     * @param value property value
+     * @param regex regular expression to match value
      * @return upgrade object
      */
     ContentUpgrade filterByPropertyIsMultiple(String name, Object value);
diff --git a/api/src/main/java/de/valtech/aecu/api/groovy/console/bindings/filters/FilterByPropertyIsMultiple.java b/api/src/main/java/de/valtech/aecu/api/groovy/console/bindings/filters/FilterByPropertyIsMultiple.java
index 92237d3e..cfa127c3 100644
--- a/api/src/main/java/de/valtech/aecu/api/groovy/console/bindings/filters/FilterByPropertyIsMultiple.java
+++ b/api/src/main/java/de/valtech/aecu/api/groovy/console/bindings/filters/FilterByPropertyIsMultiple.java
@@ -30,7 +30,7 @@
  * Filters resources by a given property. The filter only matches if the attribute exists and has
  * the exact given value and the property is an array or a list.
  *
- * @author Roland Gruber
+ * @author Michiel Spiritus
  */
 public class FilterByPropertyIsMultiple implements FilterBy {
 
diff --git a/cloud.startup.hook/pom.xml b/cloud.startup.hook/pom.xml
index e04fa7d0..41be8299 100644
--- a/cloud.startup.hook/pom.xml
+++ b/cloud.startup.hook/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>de.valtech.aecu</groupId>
         <artifactId>aecu</artifactId>
-        <version>6.5.1-SNAPSHOT</version>
+        <version>6.5.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>aecu.cloud.startup.hook</artifactId>
diff --git a/complete-cloud/pom.xml b/complete-cloud/pom.xml
index e7a0a483..548a12e7 100644
--- a/complete-cloud/pom.xml
+++ b/complete-cloud/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>de.valtech.aecu</groupId>
         <artifactId>aecu</artifactId>
-        <version>6.5.1-SNAPSHOT</version>
+        <version>6.5.O-SNAPSHOT</version>
     </parent>
 
     <artifactId>aecu.complete.cloud</artifactId>
diff --git a/complete/pom.xml b/complete/pom.xml
index 1b6f8b64..3850523e 100644
--- a/complete/pom.xml
+++ b/complete/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>de.valtech.aecu</groupId>
         <artifactId>aecu</artifactId>
-        <version>6.5.1-SNAPSHOT</version>
+        <version>6.5.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>aecu.complete</artifactId>
diff --git a/core/pom.xml b/core/pom.xml
index a83859e7..afe63178 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>de.valtech.aecu</groupId>
         <artifactId>aecu</artifactId>
-        <version>6.5.1-SNAPSHOT</version>
+        <version>6.5.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>aecu.core</artifactId>
diff --git a/examples-cloud/pom.xml b/examples-cloud/pom.xml
index 79cfa832..0477bf74 100644
--- a/examples-cloud/pom.xml
+++ b/examples-cloud/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>de.valtech.aecu</groupId>
         <artifactId>aecu</artifactId>
-        <version>6.5.1-SNAPSHOT</version>
+        <version>6.5.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>aecu.examples-cloud</artifactId>
diff --git a/examples/pom.xml b/examples/pom.xml
index ccdbde05..60423335 100644
--- a/examples/pom.xml
+++ b/examples/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>de.valtech.aecu</groupId>
         <artifactId>aecu</artifactId>
-        <version>6.5.1-SNAPSHOT</version>
+        <version>6.5.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>aecu.examples</artifactId>
diff --git a/oak.index/pom.xml b/oak.index/pom.xml
index d1943c0e..27df4dc5 100644
--- a/oak.index/pom.xml
+++ b/oak.index/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>de.valtech.aecu</groupId>
         <artifactId>aecu</artifactId>
-        <version>6.5.1-SNAPSHOT</version>
+        <version>6.5.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>aecu.oak.index</artifactId>
diff --git a/pom.xml b/pom.xml
index 0d172e00..7e82844f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
     <groupId>de.valtech.aecu</groupId>
     <artifactId>aecu</artifactId>
     <packaging>pom</packaging>
-    <version>6.4.1-SNAPSHOT</version>
+    <version>6.5.0-SNAPSHOT</version>
     <name>AECU</name>
     <description>AEM Easy Content Upgrade</description>
     <url>https://github.com/valtech/aem-easy-content-upgrade</url>
diff --git a/sonar-project.properties b/sonar-project.properties
index def62a11..f9594d23 100644
--- a/sonar-project.properties
+++ b/sonar-project.properties
@@ -2,7 +2,7 @@
 sonar.projectKey=aecu
 # this is the name and version displayed in the SonarQube UI. Was mandatory prior to SonarQube 6.1.
 sonar.projectName=AEM Easy Content Upgrade
-sonar.projectVersion=6.5.1-SNAPSHOT
+sonar.projectVersion=6.5.0-SNAPSHOT
 
 # Encoding of the source code. Default is default system encoding
 sonar.sourceEncoding=UTF-8
diff --git a/ui.apps.structure/pom.xml b/ui.apps.structure/pom.xml
index 4c935403..8d313d01 100644
--- a/ui.apps.structure/pom.xml
+++ b/ui.apps.structure/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>de.valtech.aecu</groupId>
         <artifactId>aecu</artifactId>
-        <version>6.5.1-SNAPSHOT</version>
+        <version>6.5.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>aecu.ui.apps.structure</artifactId>
diff --git a/ui.apps/pom.xml b/ui.apps/pom.xml
index 56fdd6e8..79a98773 100644
--- a/ui.apps/pom.xml
+++ b/ui.apps/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>de.valtech.aecu</groupId>
         <artifactId>aecu</artifactId>
-        <version>6.5.1-SNAPSHOT</version>
+        <version>6.5.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>aecu.ui.apps</artifactId>
diff --git a/ui.content/pom.xml b/ui.content/pom.xml
index 305014be..9e2e63cf 100644
--- a/ui.content/pom.xml
+++ b/ui.content/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>de.valtech.aecu</groupId>
         <artifactId>aecu</artifactId>
-        <version>6.5.1-SNAPSHOT</version>
+        <version>6.5.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>aecu.ui.content</artifactId>