WordPress 5.9 Beta 3 was released on December 14. Since the software is still under development, it should only be installed in a test environment.
There are three ways to test WordPress 5.9 Beta 3:
The final release is scheduled for January 25, 2022, and the core team needs help to test this activity.
Some highlights of Beta 3
14 bugs fixed since beta 2. Here are some highlights:
- Editor: Adding full site editing infrastructure from Gutenberg plugin to core (#54335).
- Allow PDF embedding with the “object” element (#54261).
- Language changer on login page (#43700).
- REST API: Added REST endpoint for navigation panes from the Gutenberg plugin (#54393).
- Themes: Fixed bug with live preview button (#54578).
how can you help
Bug testing is an important process in preparing for a release and a great way to contribute to WordPress.
If you think you’ve found a bug, you can report it in the alpha/beta section of the English support forum. If you are familiar with writing a reproducible error report, you can create one in WordPress Trac. There is also a list of all known issues.
Make/Core’s blog post Help test WordPress 5.9 features provides useful information about release testing.
Information for developers
Development-specific information about what’s new in WordPress 5.9 can be found in the Dev Note posts on the Make WordPress Core blog. To date, WordPress 5.9 has closed over 300 tickets, including nearly 100 tickets for new features and improvements.