PREVIOUSLY, on MAJOR UPDATE SPECULATION (as of July 12th): Scream Fortress VIII is out. You can check that out here. Otherwise, not much has happened, besides many smaller updates to the matchmaking and casual systems, as they slowly turn it into something that's at least a little fun. The comic will probably be out before this thread is over, unless the Pyro Update happens first, which was revealed to be coming soon in their annual "What We're Up To" blog post, this year's edition being found here.
V1: The Original
V2: Revenge of the Tobor
V3: Tonight's the Night, forever and always
V4: Tonight's the Night for QR Codes
V5: Somewhere over the rainbow
V6: Going South of Houston, Baby!
V7: Who's Ned?
V8: Rise of the Machines!
V9: Really Spooky Halloween Edition
V10: This Week Is The Week
V11: speculation has long since retired
V12: Layoffs Edition
V13: The Final Frontier
V14: Roman Numerals are the Best Edition
V15: Apocalypse Now! (In a few weeks)
V16: The Monoculus RIFT Well Spun Hat Promo Edition
V17: She's Only 17
V18: New world order
V19: Official Sponsor of the Winky Smiley
V20: ScoRes and Pipes
V21: Delays For Most
V22: Steampipe For Reals This Time
V23: the mind of the subject will desperately struggle to create speculation where none exists
V24: An Eloquent Absence of Germane Spectulation
V25: Featuring 60% less Bonus Ducks
V26: Much Ado About Nothing
V27: The Day MUS Stood Still
V28: The Speculation Zone
V29: Matchmade in Helltower
V30: cp_orange_x3 confirmed!
V31: Gamechanging Edition
V32: Like General Chat, but at least twice as neato
V33: Tomorrow For Sure
V34: Whose War is it Anyway?