The beta version of the next WordPress update is now available on Pressable sites.
Pressable allows you to test your site on the current Beta release of WordPress. This allows you to check your third-party themes, plugins, and custom code in advance, to make sure they are all compatible with the upcoming stable release of WordPress.
If you’d like to learn about how to test your site on a beta version, please see our knowledge base article:
According to the WordPress.org roadmap, WordPress 5.9 is scheduled to be released on January 25th, 2022.