Remi Collet has released candidate builds for PHP 8.5.8RC1 and 8.4.23RC1 in the testing repositories for Fedora and RHEL, allowing system administrators to safely evaluate these updates. The recommended method for installation is through parallel Software Collection installs, which ensures existing web stacks remain untouched, while also enabling a clean environment for testing compatibility. Administrators can also switch to a base module stream, but this requires enabling the remi-test repository and verifying symlinks to ensure proper functionality. It is crucial to run full application test suites and confirm the active PHP version before deploying any changes to production servers to avoid potential downtime

How to Test PHP 8.5 RC1 and 8.4 RC1 on Fedora and RHEL

Remi Collet just dropped release candidate builds of PHP 8.5.8RC1 and 8.4.23RC1 into the testing repositories for Fedora and RHEL based distributions. System admins can safely evaluate these updates using parallel Software Collection installs that leave existing web stacks completely untouched. Switching to a base module stream works too, but requires enabling the remi-test repository first and verifying symlinks afterward. Running full application test suites against the new binaries remains mandatory before anyone even considers pushing changes to production servers.

How to Test PHP 8.5 RC1 and 8.4 RC1 on Fedora and RHEL @ Linux Compatible