Improve reliability of updating forum's last post so it doesn't sometimes include very old threads
Fix deleting a post in a thread not updating the forum last post
Fix Out of range value for column 'discussion_count' error
Tweak SQL to ensure forum last post stats updates as expected.
Note; by design the last post may not update all the time, but on average isn't noticeable on a active forum.
Report Improvement's logging reply-bans to reports compatibility
Preserve original ordering of closures when pushing functions out of a transaction
Hoist updating forum counters out of the new post/add reply transaction. Relaxes updates;
removing a thread will not re-populate the last updated post
moving a thread out of an empty forum has a race condition between the thread saving and the forum counters updating
Forum counters are atomically incremented outside of a large transaction, and atomically conditionally updating the last post via SQL instead of read-mutate-update datawriter cycle
Always defer user alerts inside a known DataWriter transaction to after that transaction.
Support profile post/profile post comment/threadmarks
Revert previous attempt at preventing Like deadlocks.
Allow Likes to retry once in case of a deadlock.
Tweak how user alerts counter is incremented to reduce chance of a deadlock by touching less data.
Remove the use of LOCK FOR UPDATE on thread select when deleting. Instead use Post Delete Time Limit add-on to restrict, independent of edit-times, for how old a post can be and still be deleted.
Workaround to prevent race conditioning when following someone who is already followed.