WordPress 6.3 Lionel is now available with 400 bug fixes and over 500 new features, including enhanced site editing, Block theme previews and a Command Palette for quick navigation. It also improves performance and accessibility, while discontinuing support for PHP 5.

https://alternativeto.net/news/2023/8/wordpress-6-3-lionel-a-major-update-with-over-500-new-features-and-enhancements-for-expressive-site-editing-experience/