November 22, 2023 Update
Fixed timing for the sequence where a tentacle grabs a scientist in Blast Pit.
Fixed underwater fog rendering in OpenGL.
Fixes for UI layout in mods.
Fixed rare crash that would occur when an RPG rocket was destroyed.
Fixed the audio DSP filter (room_type) not being reset between multiplayer maps.
The Half-Life dedicated server application (app 90) has been updated.
Localization files updated.
NOTE: As of today's patch most original GoldSrc mods should now be working. Some, like Counter-Strike, are still being updated as they use old Steam functionality that is incompatible with the current Steam DLLs; an update for Counter-Strike was released today. If you are experiencing compatibility issues in a GoldSrc mod it is suggested that you install the beta "steam_legacy" build of Half-Life (which can be selected in the game's properties page).