diff --git a/Changes.md b/Changes.md
index b82ddd37..28d6af10 100644
--- a/Changes.md
+++ b/Changes.md
@@ -1,5 +1,9 @@
 ### Changes
 
+#### version 3.30 on December 17, 2023
+
+* GitHub PR #434, 448, 463 (Issue #462), 466, 467, 468, 469, 470,
+
 #### version 3.29.2 on September 14, 2022
 
 - GitHub Issue #427.
diff --git a/README.md b/README.md
index eb6ff330..c21f8382 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 Java bytecode engineering toolkit
 ### [Javassist version 3](http://www.javassist.org)
 
-Copyright (C) 1999-2022 by Shigeru Chiba, All rights reserved.
+Copyright (C) 1999-2023 by Shigeru Chiba, All rights reserved.
 
 Javassist (JAVA programming ASSISTant) makes Java bytecode manipulation
 simple. It is a class library for editing bytecodes in Java; it enables Java
diff --git a/build.xml b/build.xml
index df1ba25b..131f8995 100644
--- a/build.xml
+++ b/build.xml
@@ -6,7 +6,7 @@
 
 <project name="javassist" default="jar" basedir=".">
 
-  <property name="dist-version" value="javassist-3.29.2-GA"/>
+  <property name="dist-version" value="javassist-3.30.0-GA"/>
 
   <property environment="env"/>
   <property name="target.jar" value="javassist.jar"/>
diff --git a/javassist.jar b/javassist.jar
index 33370bc8..b5d4cd7c 100644
Binary files a/javassist.jar and b/javassist.jar differ
diff --git a/pom.xml b/pom.xml
index 42106d56..850108eb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,7 +7,7 @@
   	Javassist (JAVA programming ASSISTant) makes Java bytecode manipulation
     simple.  It is a class library for editing bytecodes in Java.
   </description>
-  <version>3.29.2-GA</version>
+  <version>3.30.0-GA</version>
   <name>Javassist</name>
   <url>http://www.javassist.org/</url>
 
@@ -151,8 +151,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.2</version>
         <configuration>
-          <source>11</source>
-          <target>11</target>
+          <source>8</source>
+          <target>8</target>
           <testSource>11</testSource>
           <testTarget>11</testTarget>
           <testCompilerArgument>-parameters</testCompilerArgument>
diff --git a/src/main/javassist/CtClass.java b/src/main/javassist/CtClass.java
index 8880b1f6..c2f04521 100644
--- a/src/main/javassist/CtClass.java
+++ b/src/main/javassist/CtClass.java
@@ -69,7 +69,7 @@ public abstract class CtClass {
     /**
      * The version number of this release.
      */
-    public static final String version = "3.29.2-GA";
+    public static final String version = "3.30.0-GA";
 
     /**
      * Prints the version number and the copyright notice.
@@ -80,7 +80,7 @@ public abstract class CtClass {
      */
     public static void main(String[] args) {
         System.out.println("Javassist version " + CtClass.version);
-        System.out.println("Copyright (C) 1999-2022 Shigeru Chiba."
+        System.out.println("Copyright (C) 1999-2023 Shigeru Chiba."
                            + " All Rights Reserved.");
     }