Threadmarks Pro 2.21.1

• Prevent recent threadmark list from being unexpectedly hidden

• Prevent error when the recent threadmark dropdown contains links to deleted posts

• Prevent mixing protected/public when extending entities
• Remove padding for around threadmark quick-reply fields to reduce wasted whitespace

• Reduce SQL queries added during search indexing threads

• Fix post quick-reply being unexpectedly disabled

• Attempt to reduce/prevent template errors during installing on very active forums
• Fix error merging threads without threadmarks

• Confirm compatibility with XF2.1
• Add recent threadmarks to bottom of the thread
• Convert enable/disable global option for threadmark icons into style properties
• Allow linking to an existing threadmark index (via URL) along side prompting for a threadmark index on thread creation
• Collapsible "linked content section"
• Improve Collaborative Thread handling of threadmark indexes.
• Fix compatibility issue with Thread Reply Banner
• Allow viewing 'soft-deleted' threadmark index still linked to a thread
  • Relax rule preventing merging multiple threads with a threadmark index
• If XF caching is setup, cache threadmark categories instead of querying for the list of threadmark categories

• Inject likes/word count into RSS feed
• Improve merging thread support by updating position data and ensuring the target thread is resorted as expected

• Fix issue adding a threadmark index to a thread which had a threadmark index removed
• Improve CSS for threadmark list collapse UI on mobiles

• Fix incorrect threadmark category query causing very poor performance during XF1 upgrade
• Display author stats even when cache is disabled