Incompatibility with newer versions of WordPress, plugins, or themes When you upgrade to PHP 8.3, you’ll usually get better performance and improved security—but only if your plugins and theme ...

The warnings will contain a link to a WordPress support page with information on how site owners can update their server's underlying PHP version.

WordPress offered guidance about compatibility of new WordPress 5.6 with PHP 8 and what that means for publishers.

After looking at these issues, I discovered seven things that may help a smooth update. 7 Considerations Before Updating WordPress Make sure PHP is updated to latest version ...