Via [url=https://list.valvesoftware.com/]HLDS[/url]:

[quote=Valve]- Updated the Beachcomber's Brim to fix an incorrect material

- Updated Taunt: The Circuit Breaker
- Fixed incorrect team color on prop
- Fixed orphaned particles

- Updated the Inglorious Patriot
- Adjusted the normal map and refined the colors
- Improved the weighting on the bottom pockets
- Updated the backpack icon

- Updated pl_redwood
- Fixed various lighting issues
- Zipline dismount jump speed now ramps up from 1.1x base class speed to 1.8x
- Decreased delay before a player can dismount a zipline by jumping from 0.6s to 0.25s
- Decreased delay before a player can dismount a zipline by crouching from 0.3s to 0.1s
- Fixed players who dismount a zipline in mid-air not receiving mini-crits from the Direct Hit and Reserve Shooter
- Fixed the B.A.S.E. Jumper's parachute deploying while using a zipline

- Updated koth_camp_saxton
- Vastly improved optimization. Further investigation is ongoing.
- Tweaked log-and-netting walls along the central shore for clearer definition
- Fixed several instances of minor prop clipping
- Fixed players getting stuck on the wood-carved Saxtons
- Improved clipping throughout[/quote]

Rumor has it:

- Size is ~125 MB