The update fixes some minor bugs, most notably the problem that CMSimple_XH 1.5.4 didn't work with some plugins (e.g. Calendar) in PHP versions before 5.3.
This version is mainly meant to fix some bugs, but it introduced some noteworthy changes for end users.
A fix (complete package and upgrade package each) for both development lines has been published to enable these versions to run on PHP 5.4.
A possible security issue has been found which requires an update. This issue existed since at least CMSimple 2.5 (Classic).
Several minor issues were fixed, some even going back to the classic CMSimple. Editor integration has been improved and default Password has been changed.
Some details were changed back for compatibility reasons.