PHP Version Update

WordPress runs on PHP, the server-side language that processes requests and builds much of the site. Upgrading the PHP runtime can provide support for newer software and reduce exposure to issues in unsupported versions. However, a new PHP release can also expose incompatibilities in older themes, plugins, or custom code. A version upgrade is therefore a planned technical change, not simply a WordPress dashboard content edit.

WordPress currently recommends PHP 8.3 or later for hosting. That recommendation is different from the minimum legacy versions that might still run WordPress; working on old software does not mean it is supported or safe. Before upgrading, create and verify a usable backup, check plugin and theme compatibility, record the existing version, and test the upgrade in staging if feasible. Monitor forms, checkout, booking, login, and scheduled tasks after the change.

A business using managed hosting may need the host to select or install the runtime. PHP versions, WordPress core, and plugins have separate release cycles and should not be conflated. A PHP update can support performance and security, but it cannot fix every vulnerability in website code.