New to XOOPS?
Get up and running with the Quick Start guide.
XOOPS 4.x Documentation
XOOPS 4.x — PSR standards, Composer-first, Bootstrap 5, PHP 8.4+.
Module Developer?
Build modules with PSR-4 namespaces — Module Guide.
Upgrading from 2.7?
See what changed and follow the Migration Guide.
Looking for 2.7 docs?
The XOOPS 2.7 documentation is still fully maintained.
What’s New in 4.x
Section titled “What’s New in 4.x” PSR-4 Autoloading Namespaced classes, Composer-managed dependencies throughout.
Bootstrap 5 Admin Rebuilt admin panel — responsive, dark mode, accessible.
PHP 8.4+ Only Typed properties, enums, fibers — full modern PHP.