I am migrating the xwiki installation from 3.5 to 6.4. I followed the upgradation steps and found the best way to upgrade is to install 6.4 war file create an empty db and and hit the xwiki url which would create the db schema and then launches the distribution wizard which is used to install 6.4 ui and xar After this login as admin and import the 3.5 xar file in new installation which I exported from existing installation The important thing to note is I had to manually select the required space/pages customized panels themes and users specific to my project from older xar Please let know whether this the best way or any other way to upgrade my xwiki Awaiting your response on this.. Regards Gaurav