1. VW4
2. Changelog for 4.0.21

Behavior Changes

• Added query support for NOT LIKE
  
• Generic handling of search-meta updates
  
• Health information for Wiki Active setting
  
• Reduced queries on Find New Wiki Updates in XenForo
  
• Added redirects for VaultWiki 3 import mappings
  
• Restored ability to suppress automatic URL tags in wiki pages in XenForo
  
• Improved scalability of cleanup-related cron jobs
  
• Stopped tracking vw_usercount.vw_translates (current behavior is a duplicate metric)
  
• Mapped vw_Global_View::add_css to required-externals in XenForo

Bug Fixes

• Maximum dimensions of image file-types after installation are all zero
  
• Fatal error uploading PNG containing EXIF segments
  
• VWE-2018-4394
  
• Renamed TABLE still overrides platform TABLE in WYSIWYG mode in vBulletin 4
  
• Warning on forum lists in vBulletin 4 < 4.1.8
  
• Progress bar increases on batch restarts
  
• Smilies always show in wiki pages even when editor disable-option is checked
  
• Disable-smilies editor option not saved for comments
  
• Disable-smilies editor option check-state not preserved across revisions
  
• Wrong breadcrumb when creating child content for a node
  
• CSS cache not populated
  
• CSS index.html file deleted by cron
  
• Editor category chooser more popup allows more selections than editor will submit
  
• Leading + in TABLE captions
  
• Wrong area list sorting options shown as selected when no sort was specified
  
• Deleting page doesn't delete vw_langitem via DM
  
• Deleting attachments doesn't decrease attachment counts
  
• Deleting some non-public content decreases public counts
  
• VW_AUTO_DELAY has no effect on deferred tasks
  
• Removing assign-item from node doesn't remove child updates from node
  
• Moving assign-item from area+node to different node removes assign-item from area counters
  
• Super-moderators not notified of new reports in vBulletin
  
• Unapproving soft-deleted content doesn't re-notify moderators
  
• Hourly cron never executes in vBulletin
  
• Failed to create imagick scratch directory
  
• Fatal error generating image sandbox path in some environments
  
• Wrong location after approving/unapproving title change
  
• Section mismatch on Preview of valid section edit
  
• New synonyms always created with No Prefix
  
• Database error changing protection for node-type pages
  
• Fatal error during proxy cleanup causes proxy usage count not to decrease
  
• Each edit of some page-types increases area page-count for that page-type
  
• Nested book limit applied to non-book chapters
  
• No output for sidebar WIDGET
  
• No output for group WIDGET
  
• No output for threads WIDGET
  
• VaultWiki 4 import: failed to import wiki attachments
  
• VaultWiki 4 import: fatal error copying comment attachments into vBulletin 4
  
• Daily/weekly feed subscription emails not sent
  
• Actioning moderated wiki pages causes area to take on count of all edits of all its pages
  
• Long auto-link terms containing shorter auto-link terms don't render properly
  
• Pages with approved edits not searchable
  
• Nodes take on last-updated time of their children
  
• Last update info of parent nodes usually not notified
  
• Fatal error filtering Special:RecentChanges by starting character
  
• Wrong synonym targets displayed on Special:DoubleRedirects
  
• Max length error on do=create in XenForo
  
• URLs in templates are auto-linked on save
  
• Can't save global wiki Style Override in vBulletin > 4.1.11
  
• Forum auto-link setting ignored in favor of global setting
  
• Missing user-option to disable auto-links in XenForo
  
• Autolinking of usernames in mentions in XenForo
  
• REDIRECT_URL doesn't reflect internal redirect to VW_DEFAULT_SCRIPT in vBulletin
  
• VaultWiki 3 import: missing transliterated URL variants for source pages from non-UTF-8 languages
  
• Missing IMG/MEDIA editor buttons when area disallows any other non-HTML parsing option in XenForo
  
• Empty URL editor dialog in wiki pages in lite in XenForo
  
• VaultWiki 4 import redirect scripts don't redirect ID URLs to new IDs
  
• VaultWiki 4 import redirect scripts don't handle synonyms
  
• Import redirect scripts don't redirect do=comments to comments tab
  
• VaultWiki 3 import: redirects that are Islands are missing Island prefix
  
• VaultWiki 3 import: redirects to Islands don't point to corresponding anonymous pages
  
• No entry for key 'session' in XenForo
  
• Wrong active state after multiple simultaneous setting rebuilds
  
• Rebuild while wiki disabled is never marked completed
  
• Failed rebuild not requeued if only setting changed is Wiki Active
  
• Race condition requeuing assumed failed setting rebuild that actually completes
  
• Saving settings after failed rebuild disables wiki in vBulletin
  
• Unphrased setting checkboxes in vBulletin
  
• Fatal error on Options > VaultWiki: Content Types
  
• Attempting to reactivate the wiki during setting build hard-deactivates in vBulletin
  
• Race condition retrying setting build that exceeds hang threshhold but actually completes
  
• Orphan phrases for Prefix BB-Codes after uninstall in XenForo
  
• VaultWiki 4 import: fatal error importing comment attachments from XenForo
  
• VaultWiki 4 import: open_basedir error importing attachments from XenForo
  
• VaultWiki 4 import: fatal error importing group discussion subscriptions from XenForo
  
• Fatal error on import config success
  
• Double-encoded characters in breadcrumbs in XenForo
  
• Double-encoded characters in tab name in XenForo
  
• VaultWiki 4 import: fatal error importing tags into XenForo
  
• Sub-forum integrations don't show in parent forum view in XenForo
  
• Wrong sub-forum count with sub-forum integrations in XenForo
  
• Invalid output of vw_Cookie_Model::get_full_name in XenForo
  
• Same-page section links don't jump on click

Style Tweaks

• Both Home and Wiki tabs selected on some admin pages in XenForo
  
• Confusion between moderated vs reported content alerts
  
• Unnecessary space in empty reports list in vBulletin
  
• Hardcoded text in some admin settings moved to phrases
  
• Long usernames overflow content list last update column in XenForo
  
• Discussion list shows starter on same line as title in XenForo
  
• Inconsistent watch list responsiveness of stats/last update in XenForo
  
• Inconsistent font size of Never in last update column in XenForo