It’s going to be available without enabling the BETA flag, and from now it’s officially supported.
Release Notes
The Liferay Developer Studio installer now includes JDK 21 as a selectable option if it’s available, simplifying the initial setup and providing a more convenient and user-friendly experience for developers wanting to use the latest Java version supported by Liferay.
This feature aims to enable all fields of an object to be localizable and displayed according to the user's chosen locale settings.
Key Benefits:
The localization feature will support all existing locales in the system
Custom Object entries and Modifiable System Objects entries
Localization settings are now managed at the individual field level
The JS Component Support Tabs (data-toggle="liferay-tabs" API ) is being deprecated and it is not included in the bundle unless deprecation FF LPD-47713 is enabled.