What’s the Current Status of JEP 468 for Derived Record Creation?

As for the IDE situation, keep in mind that OpenJDK lays out the feature roadmap, but IDEs need time to implement and support new features. So if it's not working in your IDE, it's likely because the necessary updates haven't been rolled out yet.

Just a heads-up, don’t expect any amber-related JEPs, including this one, to be out anytime soon—unless it involves primitive patterns in switch and instanceof. The Amber team has shifted focus to Valhalla, which is taking a lot of their attention. This is pretty disappointing since without withers, records can become quite cumbersome.

Unfortunately, JEP 468 is still in the design phase. It hasn't been finalized or approved for release yet, so we may have to wait quite a while before we can actually start using it.

I'm really looking forward to this feature too! It should make working with derived records much smoother, especially for avoiding those manual withers when updating multiple values. It could seriously improve the way we handle data.

It's important to understand that just because JEP 468 is labeled as 'preview', it doesn't mean it's currently usable. The term indicates its intended future status, which may not reflect its actual availability at this moment. Right now, it's just a candidate for JDK 26, still under deliberation.