User Essentials 4.6.6

• Fix that "Thread starter permissions" block would not have the correct defaults initialized when a user with unlock/lock own thread starts a new thread
• Thread starter permissions changes;
  • Add admincp option for various thread starter permissions defaults
  • Add option "Block users unlocking their own thread that was locked by a moderator"
  • Rework unlock thread starter logic; When a thread is locked by a moderator, the (new) "locked by user" UI toggle is set and "unlock thread" is no longer changed.

• Fix error viewing a user's profile & profile comments when 'Display mini-avatars' is enabled
• Fix XFRM/XFMG support for 'Display mini-avatars' & mention tracking

• Require XF2.1+, remove XF2.0 support
• Fix editing a profile post or profile post comment would send an insert alert
• Adjust wording for maximum message count limit error for user name changes
• Change "Enable "[UserEss] Hide online status" permission feature" default to off, as this may introduce additional queries
• Option to suppress "Clear-Site-Data" header being sent on logout
• Support mini-avatars in Reports/Conversations/XFRM
• Post/thread/conversation preview work if a message is entered but other aspects (which may not even be rendered, are not)
• Allow previewing signature

• Fix that username changes could fail without disclosing the correct reason why

• Harden content mentions rebuilding, now logs errors and continues

• Fix duplicating user name change record on user merge
• Do not log requester IP address into the username change record when editing the username from the admincp

• Fix username change requests requiring approval listing the current change as a previous change

• Fix mention rebuild jobs (broken since v3.3.0)

• Migrate username change alerts from XF1.x to XF2.x format

• Fix blank error message when a user tries to reply to a locked thread when they have the unlock own thread permission