1. VW4
2. Changelog for 4.0.6

New Features

• Tag Wiki Content with XenForo Content Tags
  
• Allow Renaming of BB-Code Tags created by VaultWiki
  
• Refuse to install/upgrade if Zend Opcache is poorly configured
  
• Back button in FAQ Navigation
  
• Syntax Manager settings merged to BB Code Manager

Bug Fixes

• "Unregistered" created "Wiki" in Activity Stream in vBulletin 4
  
• Editor toolbar shows 'Array' and extra separators in vBulletin 3
  
• Add-to-group buttons only appear for non-group-members in vBulletin
  
• List and create buttons are linked to preview length
  
• Bitfield collision, book can-list and follow-mod-rules are linked
  
• [reflist] generates invalid HTML
  
• Stop-parse tags create section mismatches in vBulletin
  
• BB-Code button images broken in BB Code Manager in vBulletin
  
• tagcloud.php fatal error on some forum pages in lite in vBulletin 4
  
• Special pages not appearing in search results in XenForo
  
• Custom BB-Codes not showing in wiki editor in XenForo
  
• Reinstall might use old Memcache/Xcache entries in vBulletin
  
• Re-running some 4.0.4 upgrade steps wonks data
  
• Non-popup FAQ is unstyled
  
• FAQ popups not working
  
• GALLERY doesn't appear in Special:WikiCodeList
  
• WIDGET installs as a linking BB-Code
  
• Last discussion update always links to main view
  
• Improper URL protocol locks admins out on some servers
  
• Attach history still records while disabled in XenForo
  
• Legacy IF doesn't work in XenForo
  
• Truncated reason input might be invalid UTF8
  
• Length optimization breaks legacy code on short pages
  
• New synonyms of synonyms don't show as last update
  
• VW3->VW4(up from lite)->VW4 may lose some area behaviors
  
• Invalid contribution link on user profiles
  
• URL resolver doesn't support // protocol
  
• Base URL starting with // doubles host
  
• Renaming attachments might break icons
  
• PDF is never a thumbnail type
  
• Database error viewing tag cloud in vBulletin 4
  
• Prevent nodes from adding to themselves
  
• Fixed some notices
  
• VAR in template uses template info instead of caller info