1. VW4
2. Changelog for 4.1.0

Behavior Changes

• Reduced memory requirement for revision comparisons [since: 4.1.0 RC 2]
  
• WIDGET can now output non-VW-provided widgets [in: XF >= 2.0] [lite: no]

Bug Fixes

• VaultWiki 3 import database error importing social group discussions [since: 4.1.0 RC 1] [lite: no]
  
• Database error viewing list of conflicts for a page [since: 4.1.0 RC 1]
  
• VaultWiki 4 import fatal error on comment attachments [lite: no]
  
• VaultWiki 4 import database error on file edits [lite: no]
  
• VaultWiki 4 import database error on revisions [lite: no]
  
• Database error attempting to duplicate translation [lite: no]
  
• VaultWiki 4 import fatal error on social group picture comments [lite: no] [since: 4.1.0 Alpha 1]
  
• VaultWiki 4 import database error reading social group picture files from vB4 [lite: no] [since: 4.1.0 Alpha 1]
  
• Import fatal errors resolving inherited dependencies from another platform [lite: no] [since: 4.1.0 Alpha 1]
  
• Database error attempting to duplicate chapter [lite: no]
  
• VaultWiki 4 import fatal error handling logged IPs [since: 4.1.0 RC 3] [lite: no]
  
• Database error parsing autolinks in comments [since: 4.1.0 RC 1] [lite: no]
  
• Database error fetching discussion info [since: 4.1.0 RC 1]
  
• Import possibly prevented by invalid UTF-8 errors in vBulletin [in: XF >= 2.0] [lite: no]
  
• VaultWiki 4 import skips attachments on comments [lite: no]
  
• Blank title for area delete confirmation [since: 4.1.0 Beta 3]
  
• Array-access on bool pointer when installing example areas
  
• Wrong version ID for non-lite versions [in: XF >= 2.0] [lite: no]
  
• Undefined class constant causes image thumbnails and proxy to fail [in: vB] [lite: no] [since: 4.1.0 Alpha 1]
  
• Forumbit injection attempts to get node_id from non-object [lite: no] [in: XF >= 2.0]
  
• Database error attempting to update area rating prevents other ratings from updating [lite: no] [since: 4.1.0 RC 2]
  
• FOOTNOTEs in templates override FOOTNOTEs from other templates [in: XF] [lite: no]
  
• Template parameters only replaced in first usage of each template [lite: no]
  
• Jump to FOOTNOTE doesn't account for sticky header [in: XF >= 2.0] [lite: no]
  
• Javascript error initializing elements that are not currently in DOM [since: 4.1.0 Alpha 1]
  
• Custom field dates/times w/ single-digit component values considered invalid [in: XF >= 2.1] [lite: no] [since: 4.1.0 RC 3]
  
• VaultWiki 3/4 importer fatal error importing social group members from vBulletin [in: XF < 2.0] [lite: no]
  
• VaultWiki 4 importer database error importing comment attachments [in: vB >= 4.0] [lite: no]
  
• Invalid revision navigating to previous from revision view [in: XF >= 2.0]
  
• Excessive top padding in non-lazy FILE output [lite: no] [since: 4.1.0 RC 3]
  
• Deadlock w/ 2 users priming parser cache for same wiki page simultaneously
  
• Deadlock updating session when viewing wiki and non-wiki content simultaneously [since: 4.0.13]
  
• Missing session activity for feed lists
  
• Undefined areaid viewing list of feeds by user [since: 4.1.0 Beta 3]
  
• Stat failed when viewing attachments w/ filedata missing from file system [in: XF] [lite: no]
  
• Array-access on null pointer when resetting assignment form to filtered by None
  
• Invalid getter in Widget Permissions for widgets w/o area assignments [in: XF >= 2.0]
  
• IMG invalid if URL passed as template parameter [in: XF >= 2.0] [lite: no]
  
• Database error removing discussions from removed pages [since: 4.1.0 RC 1]
  
• Array-access on bool pointer when caching parents of non-existent content
  
• Draft of newly selected area removed after creation rather than actually loaded draft [lite: no] [since: 4.1.0 Beta 1]
  
• Wiki permissions of registered users awaiting confirmation inconsistent w/ forum permissions [in: XF]
  
• Discussion view not displaying description [in: XF >= 2.0] [lite: no]
  
• Ungrouped infobox fields not assigned if other groupings exist [in: XF >= 2.1] [lite: no] [since: 4.1.0 RC 3]
  
• Custom selections for infobox groupings not saved [in: XF >= 2.1] [lite: no] [since: 4.1.0 RC 3]
  
• Tagging wiki content fails [in: XF < 2.0] [since: 4.1.0 Alpha 1] [lite: no]
  
• Fatal error in version checking and admin icon choosers [in: XF < 2.0] [since: 4.1.0 RC 3]
  
• Fatal error on WYSIWYG switch on wiki pages containing URL tags [in: vB >= 4.1.4 Beta 1]
  
• Stock vBulletin TABLE classes not preserved on WYSIWYG switch [in: vB >= 4.1.4 Beta 1] [lite: no]
  
• Enable Auto Links has no effect [in: vB] [since: 4.1.0 Alpha 1] [lite: no]
  
• Duplicate key error approving edits w/ custom field values [in: XF >= 2.1] [since: 4.1.0 RC 2] [lite: no]
  
• Fatal error editing non-wiki posts containing TABLE in WYSIWYG mode [in: vB > 4.1.4 Beta 1] [since: 4.1.0 Beta 4] [lite: no]
  
• Template names as HTML comments not ignored in CSS and other places [in: vB] [since: 4.1.0 Alpha 1]
  
• New page draft not cleared after creating it [lite: no] [since: 4.1.0 Alpha 1]
  
• Database error missing vw_page.ip_id when upgrading past 4.1.0 RC 2 [in: vB] [since: 4.1.0 RC 2]
  
• Invalid contenttypeid upgrading past 4.1.0 RC 2 [in: vB >= 4.2.0 Alpha 1] [since: 4.1.0 RC 2] [lite: no]
  
• Fatal error viewing content containing sidebar-type WIDGETs [lite: no] [since: 4.1.0 RC 3]
  
• Persistency of wiki drafts inconsistent w/ forum drafts [in: XF] [since: 4.1.0 Alpha 1] [lite: no]
  
• Fatal error in admin user search [in: XF < 2.0] [since: 4.1.0 RC 3]
  
• No output from wiki PHP files w/ internal or non-standard-flagged output buffers
  
• Fatal error discovering links [since: 4.1.0 RC 3 PL 1]
  
• Warning comparing w/ invalid revision in PHP 7.4
  
• File Browser invisible after loading [in: XF >= 2.0] [since: 4.1.0 RC 3] [lite: no]
  
• Fatal error viewing recent activity containing likes of wiki pages [since: 4.1.0 Alpha 1] [in: XF < 2.0]
  
• Category column entries balanced to next column duplicate first entry in target column [lite: no] [since: 4.1.0 Alpha 1]
  
• Failed to create vw_disambigitem on fresh install [lite: no] [since: 4.1.0 RC 3]
  
• Fatal errors editing wiki-related system options while add-on disabled [in: XF]
  
• Duplicate background images on lazy-loaded status icons [lite: no]
  
• Missing IP address when comparing rollback w/ unloaded previous revision [lite: no]
  
• All links in same page tracked as pointing to the same place [since: 4.1.0 Alpha 1]
  
• String-to-array conversion filtering users by wiki columns [since: 4.1.0 RC 3] [in: XF < 2.0]
  
• Undefined index in news feed about wiki edits [since: 4.1.0 RC 3] [in: XF < 2.0]
  
• WIDGET scope attribute doesn't work in wiki pages [lite: no]
  
• FILE button still works if area disallows images [in: vB4 < 4.1.4 Beta 1] [lite: no]
  
• VaultWiki 3 import missing social group pictures stored in file system [lite: no] [since: 4.1.0 Alpha 1]
  
• VW imports missing social group icons stored in file system [lite: no] [since: 4.1.0 Alpha 1]
  
• VaultWiki 3 import missing comments [lite: no] [since: 4.1.0 RC 1]
  
• VaultWiki 4 import not accepting XenForo 2.x as valid source dependency [since: 4.1.0 Alpha 1] [lite: no]
  
• VaultWiki 4 import missing custom fields [lite: no] [since: 4.1.0 RC 2] [in: XF >= 2.1]
  
• VaultWiki 4 import missing content-level permissions [lite: no] [since: 4.1.0 Beta 2]
  
• VaultWiki 4 import usergroup permissions to wrong usergroups [lite: no]
  
• VaultWiki 3 import usergroup permissions to wrong usergroups [in: XF < 2.0; vB] [lite: no]
  
• VaultWiki 3 import missing usergroup permissions [in: XF >= 2.0] [lite: no]
  
• VaultWiki 4 import missing disambiguation entries [since: 4.1.0 RC 3] [lite: no]
  
• VaultWiki 4 import missing feed entries [since: 4.1.0 Alpha 1] [lite: no]
  
• VaultWiki 4 import missing template packs [since: 4.1.0 RC 3] [lite: no]

Style Tweaks

• RTE drop-downs in popup editor list clipped by the next editor [lite: no] [since: 4.1.0 RC 3]