On Fri, Aug 7, 2009 at 21:46, Kelly Lakas<klakas(a)nwlinc.com> wrote: XEM 1.7.2 is based in XE 1.9.2 not 2.0M2. XE 2.0 based XEM release will only starts when 2.0 is stable. See http://www.xwiki.org/xwiki/bin/view/Main/Download#HXWikiEnterpriseManager No, upgrading XE does not remove any data, it's doing what you ask it to do. XEM is just XE+applications+configuration, when you upgrade XE it just upgrade XE it will not touch XEM specific pages so no you don't need to "convert" again to XEM. Just make sure you keep the same configuration in xwiki.cfg, specifically xwiki.virtual=1 but anyway when you upgrade a wiki you are supposed to check all the configuration. See http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Installation#HUpgrading… Also note that since each wiki has its own database and pages you have to upgrade each wiki you want to upgrade with the xar file. -- Thomas Mortagne