Gameplay changes:
- Added a duck timer that prevents duck spamming while running around on-ground.
- In-air, players are only allowed to duck once before they touch ground again.
- Fixed several bounding box issues with jumping, falling, and rocket jump air-walking. Bounding box should be much more accurate there now.
- Increased backstab check so that Spies can side-stab again.
- When disguising, Spies now always start showing the primary weapon in their disguise, and can then switch it with the last-disguise key.

TF2 Fixes:
- Fixed flamethrower loophole that resulted in the flame effect being stuck on while the flamethrower wasn't really firing.
- Fixed exploit that allowed players to circumvent the force-fire timeout on the pipebomb launcher.
- Fixed a bug that caused Natasha's slow on hit effect to be inverted from 75% to 25%.
- Restored sawmill_logs.mdl file, fixing some user maps that used it.
- Fixed some localization issues with Scout achievement strings.
- Removed the "Final" phrasing in the map loading screen.

Engine fixes:
- Fixed a server crash on startup under Linux.
- Fixed a buffer overflow issue related to network string tables.
- Gamestats uploading is now done asynchronously. This fixes the client timeout issues on map changes.

CP_Junction:
- Fixed an exploit where engineers could build a teleporter exit in an invalid area.
- Fixed a few bad overlay assignments and other minor issues.