http://store.steampowered.com/news/17694/
[quote]
Changed the Pomson 6000 ÜberCharge and cloak drain effect's distance fall-off
Old: Drain 15 ÜberCharge at point blank and scale down to 0 at 1024 HU
New: Drain 10 ÜberCharge from 0 to 512 HU and scale down to 0 at 1536 HU
Added Arms Race 1 and Arms Race 2 community event medals
Fixed a bug related to using incorrect particle effects
Fixed the Scorch Shot flares pushing teammates
Fixed being able to carry the flag with the Rocket/Sticky Jumpers
Fixed Sentries shooting over the head of Spies using the Box Trot taunt
Fixed tf_bot_join_after_player preventing the bots from joining a team after the player joins team Spectator
Fixed missing secondary attack animations for the Short Circuit
Fixed the Contracts button on the main menu not being disabled when there are no contracts
Fixed an exploit related to coaching and the 'autoteam' command
Fixed Mann vs. Machine maps not resetting properly after a successful vote to change the challenge
Fixed Stat Clock models not cloaking with the Spy
Fixed a case where buildings would not go active if they were sapped while being built
Fixed a display bug that made it look like players had received multiple copies of the same item
[b] Fixed a regression with the tournament spectator GUI that broke custom HUDs[/b]
Fixed showing "cannot be listed on the Steam Community Market for one week" on listings in the Steam Community Market when that is no longer the case
Fixed a rare client crash when turning in Contracts
Updated the Spy Contract objective for destroying buildings to work with the Ap-Sap, the Red-Tape Recorder, and the Snack Attack
Updated Mann Co. Store prices for foreign currencies to current USD equivalents
Updated the localization files
Maps Workshop Beta
Improved handling of recently changed workshop maps
Fixed a case where servers would fail to load maps that had been updated since the last server restart
Fixed a case were clients would not check for new versions when connecting to a workshop server
Improved server console output when waiting on map downloads during level change
Fixed a case where subscribing to maps while the game was running could result in failure to load the map
Fixed a case where joining a server running a workshop map would first wait for all subscribed maps to finish downloading before attempting to download the map at hand
[/quote]

Strings: https://github.com/SteamDatabase/GameTracking/commit/63ba9574fde831ff65972727212cb8dc8387c2ff

Strings info:

A lot of item descriptions changed to better reflect their attributes. Most of these were changed in Gun Mettle but their descriptions were not.