To all XWiki users, If you’re upgrading from a version of XWiki < 7.2 and moving to a version > 7.2 (don’t use 7.2 or 7.3, you should use 7.4.2), then you should read this page: http://platform.xwiki.org/xwiki/bin/view/Features/ContentOrganization It explains the concept of Nested Pages and explains how to migrate your content. Hope it helps, Thanks -Vincent