XWiki is a WikiWiki clone written in Java that supports many popular features of other Wikis like the Wiki syntax, version control, attachments, security, and searching, but also many advanced features like templates, database and dynamic development using scripting languages (Velocity, Groovy, Ruby, Python, PHP, and more), an extension system and skinability, J2EE scalability, an XML/RPC remote API, statistics, RSS feeds, PDF exporting, WYSIWYG editing, an Office viewer and importer, and a lot more.

Changes:
This release comes with Solr search enabled by default. The search UI has been redesigned, and the search backend has been greatly improved. A new Menu application is now available to help you create navigation menus which can be placed after the header or in a side panel. Beside this, a lot of bugfixes (124) and small improvements (53) make this release worth trying

URL:
XWiki – Freecode

XWiki 5.1-0630_xwiki_5.1-rc-1.png