Via [url=https://store.steampowered.com/news/276074/]the Steam store[/url] and [url=https://list.valvesoftware.com/]HLDS[/url]:

[quote=Valve]- Fixed missing sound for Taunt: Circuit Breaker
- Renamed "Northern Nights" Summer 2026 Unusual effect to "Polar Prism"
- Updated the Floral Growth Unusual effect to fix orientation/position problems

- Updated the Bald Spotter
- Adjusted vertex normals and diffuse on head
- Adjusted normals and specular on head mirror
- Reduced mesh size slightly toward the front and back of the head
- Fixed some facial flexes
- Reduced texture size of lens

- Updated the Surgical Shroud
- Fixed vertex normal issue on coat
- Adjusted Phongfresnelranges on mirror to improve envmap effect
- Reduced texture size of mirror

- Updated/Added some tournament medals
- Updated koth_dusker to globally improve lighting in outdoor areas for better team recognition

- Updated cp_premuda
- Fixed conflicting files leading to crashes
- Fixed several spawn room errors
- Adjusted respawn-times to make capping easier
- Adjusted sound timings and volume
- Brightened up dark spaces and tunnels
- Smaller changes all around the map to improve game flow
- Miscellaneous visual and clipping bugs fixed[/quote]

Rumor has it:

- Size is close to 60 MB