diff --git a/CHANGELOG b/CHANGELOG
index 9967549..05b2379 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,12 @@
 CHANGELOG
 =========
 
+2.3.0
+-----
+
+* Add org.immutables:value compatibility for level 5-complexity (disable ForbidWildcardAsReturn)
+* Upgrade checkstyle to 7.6.1
+
 2.2.0
 -----
 
diff --git a/builder/pom.xml b/builder/pom.xml
index 9caa790..808bcbb 100644
--- a/builder/pom.xml
+++ b/builder/pom.xml
@@ -12,7 +12,7 @@
     </parent>
 
     <artifactId>kemitix-checkstyle-ruleset-builder</artifactId>
-    <version>2.3.0-SNAPSHOT</version>
+    <version>2.4.0-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>Kemitix Checkstyle Ruleset Builder</name>
diff --git a/plugin-sample/pom.xml b/plugin-sample/pom.xml
index c9d9c71..ff704ae 100644
--- a/plugin-sample/pom.xml
+++ b/plugin-sample/pom.xml
@@ -8,12 +8,12 @@
     <parent>
         <groupId>net.kemitix</groupId>
         <artifactId>kemitix-checkstyle-ruleset-sample-parent</artifactId>
-        <version>2.3.0-SNAPSHOT</version>
+        <version>2.4.0-SNAPSHOT</version>
         <relativePath>../sample-parent</relativePath>
     </parent>
 
     <artifactId>kemitix-checkstyle-ruleset-plugin-sample</artifactId>
-    <version>2.3.0-SNAPSHOT</version>
+    <version>2.4.0-SNAPSHOT</version>
 
     <name>Kemitix Checkstyle Ruleset Plugin Sample</name>
     <description>Sample usage of the Kemitix Checkstyle Ruleset Plugin</description>
diff --git a/plugin/pom.xml b/plugin/pom.xml
index 70cff51..d8d1911 100644
--- a/plugin/pom.xml
+++ b/plugin/pom.xml
@@ -7,7 +7,7 @@
     <parent>
         <groupId>net.kemitix</groupId>
         <artifactId>kemitix-checkstyle-ruleset-parent</artifactId>
-        <version>2.3.0-SNAPSHOT</version>
+        <version>2.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>kemitix-checkstyle-ruleset-maven-plugin</artifactId>
diff --git a/pom.xml b/pom.xml
index ba80630..a256b1a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>net.kemitix</groupId>
     <artifactId>kemitix-checkstyle-ruleset-parent</artifactId>
-    <version>2.3.0-SNAPSHOT</version>
+    <version>2.4.0-SNAPSHOT</version>
     <packaging>pom</packaging>
 
     <name>Kemitix Checkstyle Ruleset (Parent)</name>
diff --git a/regressions/pom.xml b/regressions/pom.xml
index 3c258b0..abb2165 100644
--- a/regressions/pom.xml
+++ b/regressions/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <artifactId>kemitix-checkstyle-ruleset-sample-parent</artifactId>
         <groupId>net.kemitix</groupId>
-        <version>2.3.0-SNAPSHOT</version>
+        <version>2.4.0-SNAPSHOT</version>
         <relativePath>../sample-parent</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/ruleset/pom.xml b/ruleset/pom.xml
index 72277eb..2490ece 100644
--- a/ruleset/pom.xml
+++ b/ruleset/pom.xml
@@ -7,11 +7,11 @@
     <parent>
         <groupId>net.kemitix</groupId>
         <artifactId>kemitix-checkstyle-ruleset-parent</artifactId>
-        <version>2.3.0-SNAPSHOT</version>
+        <version>2.4.0-SNAPSHOT</version>
     </parent>
 
     <artifactId>kemitix-checkstyle-ruleset</artifactId>
-    <version>2.3.0-SNAPSHOT</version>
+    <version>2.4.0-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>Kemitix Checkstyle Ruleset</name>
diff --git a/sample-parent/pom.xml b/sample-parent/pom.xml
index ba7b589..08261e9 100644
--- a/sample-parent/pom.xml
+++ b/sample-parent/pom.xml
@@ -8,7 +8,7 @@
     <artifactId>kemitix-checkstyle-ruleset-sample-parent</artifactId>
     <packaging>pom</packaging>
 
-    <version>2.3.0-SNAPSHOT</version>
+    <version>2.4.0-SNAPSHOT</version>
 
     <name>Kemitix Checkstyle Ruleset Sample Parent</name>
     <description>Sample parent for modules that use kemitix-checkstyle-ruleset-maven-plugin</description>