Which PHP versions does Magento 2.4.2 support?
Every Magento 2.4.2 release we tested installs on PHP 7.4. None install on PHP 8.1, 8.2, 8.3, 8.4 or 8.5.
Last run 3 October 2026. Each run is our baseline stack for the release, picked from Adobe's system requirements, with only the php swapped, installed in Docker, compiled and put through storefront, checkout and admin browser tests.
Every php version on every Magento 2.4.2 release
3 Magento 2.4.2 releases, oldest first. Each version links to its full answer, each cell to the release page with every run log.