[maven-release-plugin] prepare for next development iteration
diff --git a/apache-qpid-protonj2/pom.xml b/apache-qpid-protonj2/pom.xml
index bc646f6..d3ea8b0 100644
--- a/apache-qpid-protonj2/pom.xml
+++ b/apache-qpid-protonj2/pom.xml
@@ -18,7 +18,7 @@
   <parent>
     <groupId>org.apache.qpid</groupId>
     <artifactId>protonj2-parent</artifactId>
-    <version>1.0.0-M8</version>
+    <version>1.0.0-M9-SNAPSHOT</version>
   </parent>
 
   <modelVersion>4.0.0</modelVersion>
diff --git a/pom.xml b/pom.xml
index 9987d0d..0a41856 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,7 +25,7 @@
 
   <groupId>org.apache.qpid</groupId>
   <artifactId>protonj2-parent</artifactId>
-  <version>1.0.0-M8</version>
+  <version>1.0.0-M9-SNAPSHOT</version>
   <packaging>pom</packaging>
 
   <name>Qpid ProtonJ2 Parent</name>
@@ -70,7 +70,7 @@
     <connection>scm:git:https://gitbox.apache.org/repos/asf/qpid-protonj2.git</connection>
     <developerConnection>scm:git:https://gitbox.apache.org/repos/asf/qpid-protonj2.git</developerConnection>
     <url>https://gitbox.apache.org/repos/asf?p=qpid-protonj2.git</url>
-    <tag>1.0.0-M8</tag>
+    <tag>1.0.0-M7</tag>
   </scm>
   <issueManagement>
     <url>https://issues.apache.org/jira/browse/PROTON</url>
diff --git a/protonj2-client-docs/pom.xml b/protonj2-client-docs/pom.xml
index 88d2cc9..ab5e8e6 100644
--- a/protonj2-client-docs/pom.xml
+++ b/protonj2-client-docs/pom.xml
@@ -18,7 +18,7 @@
   <parent>
     <groupId>org.apache.qpid</groupId>
     <artifactId>protonj2-parent</artifactId>
-    <version>1.0.0-M8</version>
+    <version>1.0.0-M9-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>
 
diff --git a/protonj2-client-examples/pom.xml b/protonj2-client-examples/pom.xml
index 9b26d9d..1be8bf5 100644
--- a/protonj2-client-examples/pom.xml
+++ b/protonj2-client-examples/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.qpid</groupId>
     <artifactId>protonj2-parent</artifactId>
-    <version>1.0.0-M8</version>
+    <version>1.0.0-M9-SNAPSHOT</version>
   </parent>
 
   <artifactId>protonj2-client-examples</artifactId>
diff --git a/protonj2-client/pom.xml b/protonj2-client/pom.xml
index c82d657..5896328 100644
--- a/protonj2-client/pom.xml
+++ b/protonj2-client/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.qpid</groupId>
     <artifactId>protonj2-parent</artifactId>
-    <version>1.0.0-M8</version>
+    <version>1.0.0-M9-SNAPSHOT</version>
   </parent>
 
   <artifactId>protonj2-client</artifactId>
diff --git a/protonj2-performance-tests/pom.xml b/protonj2-performance-tests/pom.xml
index 56600c7..9f784f3 100644
--- a/protonj2-performance-tests/pom.xml
+++ b/protonj2-performance-tests/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.qpid</groupId>
     <artifactId>protonj2-parent</artifactId>
-    <version>1.0.0-M8</version>
+    <version>1.0.0-M9-SNAPSHOT</version>
   </parent>
 
   <artifactId>protonj2-performance-tests</artifactId>
diff --git a/protonj2-test-driver/pom.xml b/protonj2-test-driver/pom.xml
index 4e27f9a..8a06d48 100644
--- a/protonj2-test-driver/pom.xml
+++ b/protonj2-test-driver/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.apache.qpid</groupId>
     <artifactId>protonj2-parent</artifactId>
-    <version>1.0.0-M8</version>
+    <version>1.0.0-M9-SNAPSHOT</version>
   </parent>
 
   <artifactId>protonj2-test-driver</artifactId>
diff --git a/protonj2/pom.xml b/protonj2/pom.xml
index 04619ce..c010bee 100644
--- a/protonj2/pom.xml
+++ b/protonj2/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.apache.qpid</groupId>
     <artifactId>protonj2-parent</artifactId>
-    <version>1.0.0-M8</version>
+    <version>1.0.0-M9-SNAPSHOT</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>