Via the Steam store:
Valve- Fixed HUD scope animation exploit (GitHub fix from mastercoms)
- Fixed case where the door model for Match Status HUD wasn't initialized before setting the submodel (GitHub fix from rabscootle)
- Fixed money not automatically being collected in Mann vs. Machine respawn rooms (GitHub fix from mastercoms)
- Fixed stuck Mann vs. Machine bots sometimes causing spawn softlocks (GitHub fix from Mentrillum)
- Fixed Mann vs. Machine ammo canteens not affecting energy weapons (GitHub fix from Mentrillum)
- Fixed 'Shell Extension' achiemevent not working for energy weapons (GitHub fix from Mentrillum)
- Fixed not being able to deploy parachute after landing and becoming airborne without jump button (GitHub fix from FlaminSarge)
- Fixed some heap allocated KeyValues leaks (GitHub fix from Dmitry Tsarevich)
- Relaxed in-game chat restrictions for certain accounts
Rumor has it:
- Size is close to 50 MB