3
The problem is not to know if XOOPS must go to PHP5 but when.
Starting from the fact that the PHP team will stop the support for PHP4 it's an necessity.
It's the classical scenario for software development and evolution.
From a technical point of view,when a CMS has OO in its own name, it needs to adopt the true PHP OO version
(PHP5, PHP6) !
IMHO
Identity management, LDAP, Workflow and more
XoopsPro