Via [url=https://list.valvesoftware.com/cgi-bin/mailman/listinfo/hlds]HLDS[/url]:

[quote=Valve]- [b]Added content and features necessary to begin limited public testing of the TF2 Competitive Mode beta[/b]
- For more information on how you can participate in testing, please visit [url]https://steamcommunity.com/groups/tfcompetitive[/url]
- Updated several maps to support competitive mode
- Community request: Added SetPlayerPointsOnDeath input to tf_player_destruction_logic and a PointsValue key field to the item_teamflag entity when used in Player Destruction mode
- Fixed Mann vs. Machine Mann-Up victories sometimes failing to take player tickets and reward loot
- Fixed security issues when loading certain custom content (thanks to Nathaniel Theis and Simon Pinfold for these reports)
- Added the Civilian Grade Stat Clock
- Applies a Strange Stat Clock to a Civilian grade weapon
- Can be obtained by trading in a combination of 5 Freelance grade or better items through Mann. Co Trades
- Mannpower update
- Grappling hook movement speed penalty for powered up flag carriers increased by 10%. Flag carriers with no powerup still have no penalty.
- Reflect powerup
- Removed 25% resistance attribute
- All classes can now have up to 400 health
- Fixed a bug where reflection damage was being calculated prior to distance falloff reduction
- Reflection damage increased from 50% to 80% of damage received
- Fixed a bug where sentry rockets would reflect damage to the owning Engineer rather than the sentry itself
- Supernova powerup
- Minimum stun duration increased from 1 to 2 seconds
- Stun duration increased by 0.5 seconds for each additional victim stunned (max 4 seconds)
- Vampire powerup
- Melee attack now returns 1.25x damage as health (up from 1.0x)
- Regen and King powerup
- Increased the frequency of health regeneration. Rate of heal is increased for Scout and Spy
- Increased metal regeneration amount
- Gift Wrap has returned!
- Gift wrapped items will be delivered through Steam trading, and are subject to trade holds if the sender doesn't have a Steam Guard Mobile Authenticator
- Items can now be unwrapped by their original wrapper
- Moving forward, only tradable items can be gift wrapped. Items that are currently gift wrapped can be delivered regardless of the tradability of the contents of the gift.
- Giftapults can again deliver items to random players online, but will remain un-craftable
- Updated The Bounty Hat, Treasure Hat, and Hat of Undeniable Wealth and Respect to be tradable
- Vote kick events now display that target player's Steam avatar
- Updated models/materials for Hot Heels, The Trencher's Topper, The Exorcizor, The Mutton Mann, Doc's Holiday, The Cotton Head
- Update the Crusader's Crossbow
- Added a new shoot sound
- Added a new impact/heal sound when a teammate is healed
- Fixed the Taunt: Kazotsky Kick not hiding the Heavy's weapon
- Fixed That '70s Chapeau not being removed when the Sniper taunts
- Fixed the Catastrophic Companions hiding the player's hat and headphones
- Fixed an LOD issue for The AWPer Hand
- Added combat text and hit sounds for damage done to buildings
- Added a "Last Hit" sound option to Hit Sounds
- Triggered when one of your attacks causes the death of a player or building
- Can be toggled in the Adv. Options menu
- Updated the materials for the Panic Attack to support mat_picmip
- Updated the Taunt: Zoomin' Broom sound effects
- PASS Time update
- Fixed workshop maps not loading correctly
- Fixed being able to get inside jump pads
- Removed Sandman long-distance steal
- Added experimental cvars for playtesting
- Updated cp_vanguard
- Removed teleporter exploit on second point
- Various minor fixes (lighting, collision, optimization)
- Updated pl_borneo
- Fixed an exploit related to the final control point and dropped weapons
- Updated pl_snowycoast
- Adjusted various spawn point facings to make side exits more obvious
- Adjusted position of resupply cabinet in RED's 1st spawn
- Added ledge to 2nd point flank route window
- Adjusted common sentry nests on 2nd
- Added stronger light to entrance of lower flank route
- Door near RED's first spawn now opens on A capture and closes on final bulkhead opening
- RED no longer get forced respawn when 2nd is captured
- Added minor spawn for RED once 2nd is captured, active until BLU pushes through kennels
- Adjusted timing of flank doors at 2nd and in mines
- Updated door texture for flank exit by 2nd point gate
- Improved defendability and enlarged 3rd point
- Adjusted position of 3rd cap
- Adjusted health & ammo at 3rd
- Updated door texture for flank exit by mines
- Changed a medium ammo pack at last to full ammo pack
- Added door to ledge at last to improve RED defendability (closes when bulkhead opens)
- Added 3rd exit to BLU's last forward spawn
- Improved defendability of ledges at last inside building
- Added new dropdown area to RED's last
- Adjusted lighting in various areas
- Fixed dx settings on light pole props[/quote]

Rumor has it:

- AgentSpy reveals [url=https://www.reddit.com/r/tf2/comments/48dws4/major_tf2_update_for_22916_3116_utc_competitive/d0iut60]that the menu for competitive matchmaking has been significantly updated now that more components have landed[/url]:

[img]http://i.imgur.com/aTOdK3t.jpg[/img]

- aabicus of the Steam forums [url=http://forums.steampowered.com/forums/showthread.php?p=36223166#post36223166]recorded the new Crusader's Crossbow sounds[/url]:

[youtube]https://www.youtube.com/watch?v=LwORWpNcxMI[/youtube]

- An item schema update that heralds the return of gift wrap: https://github.com/SteamDatabase/SteamTracking/commit/5e2980620d67369f6c48930615638babd40ca2cd.diff

- This is [url=https://github.com/SteamDatabase/SteamTracking/commit/325883d121e9754bf3bcd71b2998aa3c1481a4ee]a totally inconspicuous API addition[/url]

- Size is close to 450 MB on Windows XP(!)/Vista/7/8/8.1/10, except close to 425 MB on Mac OS X - data capped users should be aware