WordPress 5.5.3 Maintenance Release

WordPress 5.5.3 is now available.

This maintenance release fixes an issue introduced in WordPress 5.5.2 which makes it impossible to install WordPress on a brand new website that does not have a database connection configured. This release does not affect sites where a database connection is already configured, for example, via one-click installers or an existing wp-config.php file.

5.5.3-alpha Issue

Earlier today — between approximately 15:30 and 16:00 UTC — the auto-update system for WordPress updated some sites from version 5.5.2 to version 5.5.3-alpha. This auto-update was due to an error in the Updates API caused by the 5.5.3 release preparations (see more here). The 5.5.3-alpha version at this point was functionally identical to 5.5.2 as no development work had been started on 5.5.3; however, the following changes may have been made to your site:

1. The default “Twenty” themes installed as part of the pre-release package.

2. The “Akismet” plugin installed as part of the pre-release package.

These themes and plugins were not activated and therefore remain non-functional unless you installed them previously. It is safe to delete these features should you prefer not to use them.

If you are not on 5.5.2, or have auto-updates for minor releases disabled, please manually update to the 5.5.3 version by downloading WordPress 5.5.3 or visiting Dashboard → Updates and click “Update Now.”

For more technical details of the issue, we’ve posted on our Core Development blog.

Thanks and props!

Thanks to those who contributed to the 5.5.3 release: @audrasjb, @barry, @chanthaboune, @cbringmann, @clorith, @davidbaumwald, @desrosj, @hellofromtonya, @jeffpaul, @johnbillion, @garubi, @metalandcoffee, @mukesh27, @otto42, @punitsoftac, @sergeybiryukov, @whyisjake, and @xknown.

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