Main wiki

For the main wiki it's basically the same thing than migrate XWiki Enterprise but with XWiki Enterprise Manager war and xar instead of XWiki Enterprise ones.

Upgrading wiki documents

As importing the XAR file for upgrading a XWiki Enterprise instance you also have to take great care of one additional file if you want to do that for the XWiki Enterprise Manager:

• XWiki.XWikiServerXwiki

If you careless select this file for the import, your Wiki could not be accessible from outside your network anymore.

Sub wikis

For subwikis it depends on what are theses subwikis. If its XWiki enterprise wikis then upgrade the wiki pages as you would do for any other XWiki Enterprise wiki.

Each subwiki could be upgraded as following: use Extension Manager to install XAR extensions you need. To do that use advanced search and look for org.xwiki.enterprise:xwiki-enterprise-ui with <required version> (if you need XE User interface) . While installation, you will get exactly the same UI as you got in the Distibution Wizard for the main wiki with conflict resolution.

If there is way too much to imagine doing it one by one it will start to be a bit more tricky and will imply some scripting since there is required backend to automate all this but not much UI yet.

While the next upgrade, the Distribution Wizard will list you the outdated extensions from all wikis in a second step and you will be able to upgrade them from there like for the main wiki in the first step.