diff --git a/src/java.compiler/share/classes/javax/lang/model/SourceVersion.java b/src/java.compiler/share/classes/javax/lang/model/SourceVersion.java
index 1a46df64ffb..e21e9e1db9a 100644
--- a/src/java.compiler/share/classes/javax/lang/model/SourceVersion.java
+++ b/src/java.compiler/share/classes/javax/lang/model/SourceVersion.java
@@ -83,6 +83,10 @@ public enum SourceVersion {
      *      preview, flexible constructor bodies in third preview)
      *  25: module import declarations, compact source files and
      *      instance main methods, and flexible constructor bodies
+     *      (primitive Types in Patterns, instanceof, and switch in
+     *      third preview)
+     *  26: no changes (primitive Types in Patterns, instanceof, and
+     *      switch in in fourth preview)
      */
 
     /**