Via the Steam Store:
An update to Team Fortress 2 has been released. The update will be applied automatically when you restart Team Fortress 2. The major changes include:
- Fixed a client crash related to viewing notifications
- Fixed being able to interrupt taunts using the ConTracker commands
- Fixed a bug with the Medi Gun not staying attached to players
- Fixed a bug with the Backburner using its owner's angle to determine whether the attack is behind the victim
- Fixed a rendering issue with the Spectral Swirl unusual effect
- Fixed not being able to fire the Dragon's Fury in some areas (e.g. the control point on Nucleus)
- Fixed not being able to light Huntsman arrows with the Dragon's Fury
- Fixed Dragon's Fury projectiles not fizzling when hitting water
- Fixed not being able to detonate stickybombs when switching to melee with secondary attack held down
- Fixed the charge sound for the Stickybomb Launcher not stopping if the player switches weapons while charging
- Fixed Quick-Fix Medics not properly following/mirroring the Pyro after launching with the Thermal Thruster
- Fixed being able to shoot flares through objects like setup gates
- Fixed the Pretty Boy's Pocket Pistol always giving 7hp per-hit
- Fixed the Winger not counting towards the Scout achievement "Gun Down"
- Fixed the Festive Sandvich not counting towards the Heavy achievement "Konspicuous Konsumption"
- Fixed the Rescue Ranger not counting towards the Engineer achievement "Texas Two-Step"
- Fixed the Genuine version of the Flying Guillotine having no taunt
- Updated the Vita-Saw so victims spawn random internal organs on hit
- Updated the Atomizer damage penalty vs players to -15% (from -25%)
- Updated the party system so invites are shown to all party members
- Updated the Thermal Thruster stomp damage on other players to be 3x the base fall damage - not the reduced fall damage of the owner
- Updated the "With Friends Like these..." achievement to check for five friends instead of seven
- Added the Heals for Reals 2017 community medals
- Added the "Philanthropist's Indulgence" community medal for Random Acts of TF2
- Added the "Spectral Snowflake" community medal for the Nightmare Before Smissmas 2017 community showcase