The terms update and upgrade refer to replacing an older version of CMSimple(_XH) with a newer one. An update is only a minor patch to the exisiting version, i.e. only the revision number of the version changes (e.g. CMSimple_XH 1.5 → 1.5.3). An upgrade covers any replacement with a newer version that is not an update, i.e. a change in the major or minor version number or even from CMSimple to CMSimple_XH.
How to update and upgrade is described in the CMSimple Forum.
While upgrading the core of CMSimple_XH is more or less painless, plugins might make trouble. The following table list some older plugins which can be replaced with XH conforming versions.
|Classic Variant||XH Variant||Data Compatibility|
|Advanced Form||Advancedform_XH||upgrade script in work|
|Gallery||lb_gallery or Gallery Collection||yes (with minor limitations)|