The XWiki development team is proud to announce the availability of XWiki Enterprise 4.0 Milestone 1. XWiki Enterprise 4.0 Milestone 1 starts a new major release cycle. This release brings reduced document database id collision and quite a few improvements and bug fixes.

See http://www.xwiki.org/xwiki/bin/ReleaseNotes/ReleaseNotesXWikiEnterprise40M1 for more details.