[maven-release-plugin] prepare for next development iteration
diff --git a/maven-plugin-annotations/pom.xml b/maven-plugin-annotations/pom.xml
index 18e5e28..07af86b 100644
--- a/maven-plugin-annotations/pom.xml
+++ b/maven-plugin-annotations/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-plugin-tools</artifactId>
-    <version>3.9.0</version>
+    <version>3.9.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-annotations</artifactId>
diff --git a/maven-plugin-plugin/pom.xml b/maven-plugin-plugin/pom.xml
index f6dab9c..d648e95 100644
--- a/maven-plugin-plugin/pom.xml
+++ b/maven-plugin-plugin/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-plugin-tools</artifactId>
-    <version>3.9.0</version>
+    <version>3.9.1-SNAPSHOT</version>
   </parent>
 
   <groupId>org.apache.maven.plugins</groupId>
diff --git a/maven-plugin-report-plugin/pom.xml b/maven-plugin-report-plugin/pom.xml
index 2ac85b3..04cdf80 100644
--- a/maven-plugin-report-plugin/pom.xml
+++ b/maven-plugin-report-plugin/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-plugin-tools</artifactId>
-    <version>3.9.0</version>
+    <version>3.9.1-SNAPSHOT</version>
   </parent>
 
   <groupId>org.apache.maven.plugins</groupId>
diff --git a/maven-plugin-tools-annotations/pom.xml b/maven-plugin-tools-annotations/pom.xml
index 9804d23..fc03afb 100644
--- a/maven-plugin-tools-annotations/pom.xml
+++ b/maven-plugin-tools-annotations/pom.xml
@@ -22,7 +22,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-plugin-tools</artifactId>
-    <version>3.9.0</version>
+    <version>3.9.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-tools-annotations</artifactId>
diff --git a/maven-plugin-tools-api/pom.xml b/maven-plugin-tools-api/pom.xml
index da839b9..d4c9bc9 100644
--- a/maven-plugin-tools-api/pom.xml
+++ b/maven-plugin-tools-api/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-plugin-tools</artifactId>
-    <version>3.9.0</version>
+    <version>3.9.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-tools-api</artifactId>
diff --git a/maven-plugin-tools-generators/pom.xml b/maven-plugin-tools-generators/pom.xml
index 1cea68b..1198e80 100644
--- a/maven-plugin-tools-generators/pom.xml
+++ b/maven-plugin-tools-generators/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-plugin-tools</artifactId>
-    <version>3.9.0</version>
+    <version>3.9.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-tools-generators</artifactId>
diff --git a/maven-plugin-tools-java/pom.xml b/maven-plugin-tools-java/pom.xml
index dbab06d..09bf7ee 100644
--- a/maven-plugin-tools-java/pom.xml
+++ b/maven-plugin-tools-java/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-plugin-tools</artifactId>
-    <version>3.9.0</version>
+    <version>3.9.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-tools-java</artifactId>
diff --git a/maven-script/maven-plugin-tools-ant/pom.xml b/maven-script/maven-plugin-tools-ant/pom.xml
index a020425..8882ace 100644
--- a/maven-script/maven-plugin-tools-ant/pom.xml
+++ b/maven-script/maven-plugin-tools-ant/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-script</artifactId>
-    <version>3.9.0</version>
+    <version>3.9.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-tools-ant</artifactId>
diff --git a/maven-script/maven-plugin-tools-beanshell/pom.xml b/maven-script/maven-plugin-tools-beanshell/pom.xml
index 524a52b..aec2679 100644
--- a/maven-script/maven-plugin-tools-beanshell/pom.xml
+++ b/maven-script/maven-plugin-tools-beanshell/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-script</artifactId>
-    <version>3.9.0</version>
+    <version>3.9.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-tools-beanshell</artifactId>
diff --git a/maven-script/maven-plugin-tools-model/pom.xml b/maven-script/maven-plugin-tools-model/pom.xml
index c671368..9c207b4 100644
--- a/maven-script/maven-plugin-tools-model/pom.xml
+++ b/maven-script/maven-plugin-tools-model/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-script</artifactId>
-    <version>3.9.0</version>
+    <version>3.9.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-plugin-tools-model</artifactId>
diff --git a/maven-script/maven-script-ant/pom.xml b/maven-script/maven-script-ant/pom.xml
index c654065..26ce4d8 100644
--- a/maven-script/maven-script-ant/pom.xml
+++ b/maven-script/maven-script-ant/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-script</artifactId>
-    <version>3.9.0</version>
+    <version>3.9.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-script-ant</artifactId>
diff --git a/maven-script/maven-script-beanshell/pom.xml b/maven-script/maven-script-beanshell/pom.xml
index 643a4de..8054d08 100644
--- a/maven-script/maven-script-beanshell/pom.xml
+++ b/maven-script/maven-script-beanshell/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-script</artifactId>
-    <version>3.9.0</version>
+    <version>3.9.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-script-beanshell</artifactId>
diff --git a/maven-script/pom.xml b/maven-script/pom.xml
index f44f13e..03d2335 100644
--- a/maven-script/pom.xml
+++ b/maven-script/pom.xml
@@ -23,7 +23,7 @@
   <parent>
     <groupId>org.apache.maven.plugin-tools</groupId>
     <artifactId>maven-plugin-tools</artifactId>
-    <version>3.9.0</version>
+    <version>3.9.1-SNAPSHOT</version>
   </parent>
 
   <artifactId>maven-script</artifactId>
diff --git a/pom.xml b/pom.xml
index f682a9b..b72ce50 100644
--- a/pom.xml
+++ b/pom.xml
@@ -29,7 +29,7 @@
 
   <groupId>org.apache.maven.plugin-tools</groupId>
   <artifactId>maven-plugin-tools</artifactId>
-  <version>3.9.0</version>
+  <version>3.9.1-SNAPSHOT</version>
   <packaging>pom</packaging>
 
   <name>Maven Plugin Tools</name>
@@ -106,7 +106,7 @@
     <reportingImplVersion>3.2.0</reportingImplVersion>
     <compilerPluginVersion>3.11.0</compilerPluginVersion>
     <javadocPluginVersion>3.5.0</javadocPluginVersion>
-    <project.build.outputTimestamp>2023-05-12T21:10:06Z</project.build.outputTimestamp>
+    <project.build.outputTimestamp>2023-05-12T21:16:13Z</project.build.outputTimestamp>
   </properties>
 
   <dependencyManagement>