--- old/src/java.compiler/share/classes/javax/lang/model/SourceVersion.java	2019-12-08 12:43:33.525192999 -0800
+++ new/src/java.compiler/share/classes/javax/lang/model/SourceVersion.java	2019-12-08 12:43:33.369270999 -0800
@@ -60,7 +60,9 @@
      *  11: local-variable syntax for lambda parameters
      *  12: no changes (switch expressions in preview)
      *  13: no changes (switch expressions and text blocks in preview)
-     *  14: switch expressions
+     *  14: switch expressions (pattern matching and records in
+     *      preview, text blocks in preview again)
+     *  15: TBD
      */
 
     /**
@@ -203,7 +205,15 @@
      *
      * @since 14
      */
-     RELEASE_14;
+    RELEASE_14,
+
+    /**
+     * The version recognized by the Java Platform, Standard Edition
+     * 15.
+     *
+     * @since 15
+     */
+     RELEASE_15;
 
     // Note that when adding constants for newer releases, the
     // behavior of latest() and latestSupported() must be updated too.
@@ -214,7 +224,7 @@
      * @return the latest source version that can be modeled
      */
     public static SourceVersion latest() {
-        return RELEASE_14;
+        return RELEASE_15;
     }
 
     private static final SourceVersion latestSupported = getLatestSupported();
@@ -229,7 +239,7 @@
     private static SourceVersion getLatestSupported() {
         int intVersion = Runtime.version().feature();
         return (intVersion >= 11) ?
-            valueOf("RELEASE_" + Math.min(14, intVersion)):
+            valueOf("RELEASE_" + Math.min(15, intVersion)):
             RELEASE_10;
     }