Java Development Kit (JDK) 21, due in September as the next long-term support release of Oracle’s standard Java implementation, is beginning to take form, with sequenced collections and string templates slated for the release so far.
Although the JDK 21 release page still lists no features as of March 3, 2023, two Java Enhancement Proposals covering these two features already have been designated for JDK 21. The specific proposals include:
