diff --git a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/system/JavaVersion.java b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/system/JavaVersion.java
index 156b497c61..2c01b4ea7e 100644
--- a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/system/JavaVersion.java
+++ b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/system/JavaVersion.java
@@ -62,6 +62,7 @@ public enum JavaVersion {
 
 	/**
 	 * Java 21.
+	 * @since 2.7.16
 	 */
 	TWENTY_ONE("21", SortedSet.class, "getFirst");