diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index 4bc182ee05..2f5b3c7caf 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -77,6 +77,8 @@ The <action> type attribute can be add,update,fix,remove.
       <action                  type="update" dev="ggregory" due-to="nbauma109, Gary Gregory, Mark Roberts">Add accessors to model and unit tests, Javadoc #183.</action>
       <action                  type="update" dev="ggregory" due-to="Gary Gregory">Add Const.MAJOR_22.</action>
       <action                  type="update" dev="ggregory" due-to="Gary Gregory">Add Const.MINOR_22.</action>
+      <action                  type="update" dev="ggregory" due-to="Gary Gregory">Add Const.MAJOR_23.</action>
+      <action                  type="update" dev="ggregory" due-to="Gary Gregory">Add Const.MINOR_23.</action>
       <!-- UPDATE -->
       <action                  type="update" dev="ggregory" due-to="Dependabot">Bump tests from org.assertj:assertj-core 3.25.3 to 3.26.3 #322, #332.</action>
       <action                  type="update" dev="ggregory" due-to="Dependabot">Bump tests from org.jetbrains.kotlin:kotlin-stdlib 1.9.23 to 2.0.0 #309, #318.</action> 
diff --git a/src/main/java/org/apache/bcel/Const.java b/src/main/java/org/apache/bcel/Const.java
index 80614c579c..9486c0faf4 100644
--- a/src/main/java/org/apache/bcel/Const.java
+++ b/src/main/java/org/apache/bcel/Const.java
@@ -300,6 +300,14 @@ public final class Const {
      */
     public static final short MINOR_22 = 0;
 
+    /**
+     * Minor version number of class files for Java 22: {@value}.
+     *
+     * @see #MAJOR_23
+     * @since 6.10.0
+     */
+    public static final short MINOR_23 = 0;
+
     /**
      * Major version number of class files for Java 14: {@value}.
      *
@@ -372,6 +380,14 @@ public final class Const {
      */
     public static final short MAJOR_22 = 66;
 
+    /**
+     * Major version number of class files for Java 23: {@value}.
+     *
+     * @see #MINOR_23
+     * @since 6.10.0
+     */
+    public static final short MAJOR_23 = 67;
+
     /**
      * Default major version number. Class file is for Java 1.1: {@value}.
      *
diff --git a/src/test/java/org/apache/bcel/ConstTest.java b/src/test/java/org/apache/bcel/ConstTest.java
index feb6307ca5..f1cb5b8a79 100644
--- a/src/test/java/org/apache/bcel/ConstTest.java
+++ b/src/test/java/org/apache/bcel/ConstTest.java
@@ -31,4 +31,10 @@ public void testJava22() throws Exception {
         assertEquals(66, Const.MAJOR_22);
         assertEquals(0, Const.MINOR_22);
     }
+
+    @Test
+    public void testJava23() throws Exception {
+        assertEquals(67, Const.MAJOR_23);
+        assertEquals(0, Const.MINOR_23);
+    }
 }