5.0.2 is a maintenance release that addresses 73 bugs.
The primary focus of this release was performance improvements in the block editor.
The cumulated performance gains make it 330% faster for a post with 200 blocks.
Here are a few of the additional highlights:
- 45 total Block Editor improvements are included (14 performance enhancements & 31 bug fixes).
- 17 Block Editor related bugs have been fixed across all of the bundled themes.
- Some internationalization (i18n) issues related to script loading have also been fixed.
For a full list of changes, please consult the list of tickets on Trac or the changelog.
You can download WordPress 5.0.2 from wordpress.org or through the Dashboard → Updates and click Update Now.
Sites that support automatic background updates have already started to update automatically.