Woot, we didn't have dev update for a while now, but finally milestone was achieved that made good material for it!
Threads implementation has reached minimum viable product level of completion.
This took a long time to complete, but its here now. Threads may be posted, subscribed, edited, moderated, anwsered. There are attachments, likes, polls and posts edit history. There are bookmarks, subscriptions and e-mail notifications.
While some of those features are rudimentary stubs, other are already very sophisticated. Still each of those make solid base for improving and extending in future iterations.
This leaves private threads, search, cleanups and data migration utility on the list. Sadly, first alpha release at years end seems impossible, but work necessary for it should wrap up somewhere in first quarter of 2017.