Fix issue where error message is suppressed when using collaborative threads
Ensure when edit history is disabled it stays disabled with the svCollaborativeHistory option set
Fix "Call to a member function isCollaborator() on integer" when deleting a forum
Fix inconsistent permission evaluation due to unexpected cache clearing (resulting in a viewer not being considered a collaborator in some contexts).
Fix for "in_array() expects parameter 2 to be array, null given"
Remove usage deprecated array_column wrapper function
Split collaborative threads moderator permissions into separate interface group
New option; 'Special "All" group shares the implicit "Manage Collaborative Threads" permission for a collaborative thread' (enabled by default)
Fix a memory leak when running from a long running process (effects User Essential's mention tracking rebuild)
Update installer code
Fix hard deleting threads
Allow users with "manage any thread" to always be able to add users & groups
Support for Attachment Improvements per-forum size/count permissions
Thread Starter Alerts integration
Add 'Always Collaborate' permission, respects the "Participate in collaborative threads" permission
If a user is added as a collaborative user, they pickup whatever group they are given. Otherwise defaults to the built-in "All" group.
In a forum without "View Others" , the 'Always Collaborate' does not result in all thread's being listed. Non-visible threads are still directly accessible, they just don't appear in the list.
Implement "Allow post collaborators to view edit history" option (default disabled)
Support Threadmark Index permissions (Require Threadmarks v2.0.1)
Avoid N+1 query behaviour if the post's user isn't loaded
Thread & post bbcode add-on compatibility fix