[maven-release-plugin] prepare for next development iteration
diff --git a/openjpa-all/pom.xml b/openjpa-all/pom.xml
index 3df1dbd..d6cc78e 100644
--- a/openjpa-all/pom.xml
+++ b/openjpa-all/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-parent</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-all</artifactId>
diff --git a/openjpa-examples/image-gallery/pom.xml b/openjpa-examples/image-gallery/pom.xml
index 48c33fc..ead9d95 100644
--- a/openjpa-examples/image-gallery/pom.xml
+++ b/openjpa-examples/image-gallery/pom.xml
@@ -27,7 +27,7 @@
   <parent>
       <groupId>org.apache.openjpa</groupId>
       <artifactId>openjpa-examples</artifactId>
-      <version>3.1.0</version>
+      <version>3.1.1-SNAPSHOT</version>
   </parent>
 
   <groupId>org.apache.openjpa.openjpa-examples</groupId>
diff --git a/openjpa-examples/openbooks/pom.xml b/openjpa-examples/openbooks/pom.xml
index cf99d0c..eab6b05 100644
--- a/openjpa-examples/openbooks/pom.xml
+++ b/openjpa-examples/openbooks/pom.xml
@@ -29,7 +29,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-examples</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <groupId>org.apache.openjpa.openjpa-examples</groupId>
diff --git a/openjpa-examples/pom.xml b/openjpa-examples/pom.xml
index e1d626b..e8cb65e 100644
--- a/openjpa-examples/pom.xml
+++ b/openjpa-examples/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-parent</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-examples</artifactId>
diff --git a/openjpa-examples/simple/pom.xml b/openjpa-examples/simple/pom.xml
index 281b2f7..1d92b34 100644
--- a/openjpa-examples/simple/pom.xml
+++ b/openjpa-examples/simple/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-examples</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <groupId>org.apache.openjpa.openjpa-examples</groupId>
diff --git a/openjpa-features/pom.xml b/openjpa-features/pom.xml
index f19e462..68c0b64 100644
--- a/openjpa-features/pom.xml
+++ b/openjpa-features/pom.xml
@@ -18,7 +18,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-parent</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-features</artifactId>
diff --git a/openjpa-integration/daytrader/pom.xml b/openjpa-integration/daytrader/pom.xml
index 8e16c83..5ae6903 100644
--- a/openjpa-integration/daytrader/pom.xml
+++ b/openjpa-integration/daytrader/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-integration</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-integration-daytrader</artifactId>
diff --git a/openjpa-integration/examples/pom.xml b/openjpa-integration/examples/pom.xml
index 4dca6ed..a90cf05 100644
--- a/openjpa-integration/examples/pom.xml
+++ b/openjpa-integration/examples/pom.xml
@@ -37,7 +37,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-integration</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-integration-examples</artifactId>
diff --git a/openjpa-integration/jmx/pom.xml b/openjpa-integration/jmx/pom.xml
index 7d40a43..72e15fb 100644
--- a/openjpa-integration/jmx/pom.xml
+++ b/openjpa-integration/jmx/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-integration</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-integration-jmx</artifactId>
diff --git a/openjpa-integration/pom.xml b/openjpa-integration/pom.xml
index dbbebdd..9c1b95a 100644
--- a/openjpa-integration/pom.xml
+++ b/openjpa-integration/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-parent</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-integration</artifactId>
diff --git a/openjpa-integration/slf4j/pom.xml b/openjpa-integration/slf4j/pom.xml
index 0296cc4..31bae0c 100644
--- a/openjpa-integration/slf4j/pom.xml
+++ b/openjpa-integration/slf4j/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-integration</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-integration-slf4j</artifactId>
diff --git a/openjpa-integration/tck/pom.xml b/openjpa-integration/tck/pom.xml
index f727c99..efdf22e 100644
--- a/openjpa-integration/tck/pom.xml
+++ b/openjpa-integration/tck/pom.xml
@@ -78,7 +78,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-integration</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-integration-tck</artifactId>
diff --git a/openjpa-integration/validation/pom.xml b/openjpa-integration/validation/pom.xml
index aa0c6d4..b83dc3b 100644
--- a/openjpa-integration/validation/pom.xml
+++ b/openjpa-integration/validation/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-integration</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-integration-validation</artifactId>
diff --git a/openjpa-jdbc/pom.xml b/openjpa-jdbc/pom.xml
index e3c3379..0f4aedb 100644
--- a/openjpa-jdbc/pom.xml
+++ b/openjpa-jdbc/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-parent</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-jdbc</artifactId>
diff --git a/openjpa-jest/pom.xml b/openjpa-jest/pom.xml
index 80a8857..bb1f9fe 100644
--- a/openjpa-jest/pom.xml
+++ b/openjpa-jest/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-parent</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-jest</artifactId>
diff --git a/openjpa-kernel/pom.xml b/openjpa-kernel/pom.xml
index cb9f5a1..37f7757 100644
--- a/openjpa-kernel/pom.xml
+++ b/openjpa-kernel/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-parent</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-kernel</artifactId>
diff --git a/openjpa-lib/pom.xml b/openjpa-lib/pom.xml
index d0cd45a..8517f25 100644
--- a/openjpa-lib/pom.xml
+++ b/openjpa-lib/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-parent</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-lib</artifactId>
diff --git a/openjpa-persistence-jdbc/pom.xml b/openjpa-persistence-jdbc/pom.xml
index 49d2370..47ad4d1 100644
--- a/openjpa-persistence-jdbc/pom.xml
+++ b/openjpa-persistence-jdbc/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-parent</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-persistence-jdbc</artifactId>
diff --git a/openjpa-persistence-locking/pom.xml b/openjpa-persistence-locking/pom.xml
index cf709e1..2526586 100644
--- a/openjpa-persistence-locking/pom.xml
+++ b/openjpa-persistence-locking/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-parent</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-persistence-locking</artifactId>
diff --git a/openjpa-persistence/pom.xml b/openjpa-persistence/pom.xml
index c29328c..0299972 100644
--- a/openjpa-persistence/pom.xml
+++ b/openjpa-persistence/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-parent</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-persistence</artifactId>
diff --git a/openjpa-project/pom.xml b/openjpa-project/pom.xml
index 0db6b52..8266c33 100644
--- a/openjpa-project/pom.xml
+++ b/openjpa-project/pom.xml
@@ -39,7 +39,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-parent</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>apache-openjpa</artifactId>
diff --git a/openjpa-slice/pom.xml b/openjpa-slice/pom.xml
index 25b3479..df670b9 100644
--- a/openjpa-slice/pom.xml
+++ b/openjpa-slice/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-parent</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-slice</artifactId>
diff --git a/openjpa-tools/openjpa-fetch-statistics-was/pom.xml b/openjpa-tools/openjpa-fetch-statistics-was/pom.xml
index 40bd4f8..0cf52ee 100644
--- a/openjpa-tools/openjpa-fetch-statistics-was/pom.xml
+++ b/openjpa-tools/openjpa-fetch-statistics-was/pom.xml
@@ -17,7 +17,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-tools</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-fetch-statistics-was</artifactId>
diff --git a/openjpa-tools/openjpa-fetch-statistics/pom.xml b/openjpa-tools/openjpa-fetch-statistics/pom.xml
index db71046..32bede6 100644
--- a/openjpa-tools/openjpa-fetch-statistics/pom.xml
+++ b/openjpa-tools/openjpa-fetch-statistics/pom.xml
@@ -17,7 +17,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-tools</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-fetch-statistics</artifactId>
diff --git a/openjpa-tools/openjpa-maven-plugin/pom.xml b/openjpa-tools/openjpa-maven-plugin/pom.xml
index 9894b3b..40f4871 100644
--- a/openjpa-tools/openjpa-maven-plugin/pom.xml
+++ b/openjpa-tools/openjpa-maven-plugin/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-tools</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/openjpa-tools/pom.xml b/openjpa-tools/pom.xml
index 8edb391..fd55dc1 100644
--- a/openjpa-tools/pom.xml
+++ b/openjpa-tools/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-parent</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
 <!--        <relativePath>../pom.xml</relativePath>-->
     </parent>
 
diff --git a/openjpa-xmlstore/pom.xml b/openjpa-xmlstore/pom.xml
index e604c49..d3b2d33 100644
--- a/openjpa-xmlstore/pom.xml
+++ b/openjpa-xmlstore/pom.xml
@@ -27,7 +27,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-parent</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa-xmlstore</artifactId>
diff --git a/openjpa/pom.xml b/openjpa/pom.xml
index e947e57..c3ed6d5 100644
--- a/openjpa/pom.xml
+++ b/openjpa/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>org.apache.openjpa</groupId>
         <artifactId>openjpa-parent</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </parent>
 
     <artifactId>openjpa</artifactId>
diff --git a/pom.xml b/pom.xml
index 436db2d..6b075c6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -36,7 +36,7 @@
     <name>OpenJPA Parent POM</name>
     <description>Apache OpenJPA implementation of JSR-338 JPA 2.1</description>
 
-    <version>3.1.0</version>
+    <version>3.1.1-SNAPSHOT</version>
 
     <properties>
         <java.class.version>1.8</java.class.version>
@@ -160,7 +160,7 @@
         <connection>scm:git:https://gitbox.apache.org/repos/asf/openjpa.git</connection>
         <developerConnection>scm:git:https://gitbox.apache.org/repos/asf/openjpa.git</developerConnection>
         <url>https://gitbox.apache.org/repos/asf/openjpa.git</url>
-      <tag>3.1.0</tag>
+      <tag>HEAD</tag>
   </scm>
 
     <modules>