Does Magento 2.4.3 run on MariaDB 12.3?
NoNone of the 4 Magento 2.4.3 releases we tested install on MariaDB 12.3. The product version does not support the selected database version. The newest Magento release that installs on MariaDB 12.3 is 2.4.9. Adobe lists MariaDB 10.4 for 2.4.3-p3.
Last run 3 October 2026. Each run is the stack Adobe recommends for the release with only the database swapped for MariaDB 12.3, installed in Docker, compiled and put through storefront, checkout and admin browser tests.
Every Magento 2.4.3 release on MariaDB 12.3
Each cell links to the release page with every setup and run log.
Why it failed
The product version does not support the selected database version.
Stopped at install on base, p1, p2, p3.
Other database versions for Magento 2.4.3
MariaDB 12.3 on other Magento lines
See every Magento and Mage-OS release on MariaDB 12.3, orevery setup for Magento 2.4.3-p3.