1.8.0
1.8.0 was a major update for Team Fortress 2 Classic. It was released on February 8, 2015. It featured multiple additions and many more bug fixes. The patch notes are on the archived TF2C Wiki.
This update came after 1.7.2 and before 1.8.1.
Changes
Fixed team collisions
Fixed the weapon menu bind
Fixed the ammo hud being incorrectly positioned
Added Colteh's fixed Tranquilizer model
Fixed cap icons for GRN and YLW
Fixed headshots and broken eyes. We're now using player models compiled by Dr.PySpy.
Added chowder908's GRN and YLW stickies
Added new Cyclops and Beta RPG sounds by Omniary
The Cyclops is now named The Heavy Ordance(sic)
The game description in the server browser is now set depending on the gamemode
Killer and assister in the killfeed are now properly colored
Certain weapons now have proper muzzle flash model scales (Thanks to Onefourth for messing with the values and finding the ones that look best)
Fixed the Civilian crash
Ported the Scoreboard from live TF2
Sticky bombs(sic) and pipe bombs now properly use GRN and YLW skins
Added a 4 team scoreboard (currently broken on 4:3 resolutions) (Bassed off of onefourth's concept image)
Added a 4 team selection menu (models by sedimentarysocks, textures by onefourth)
HUD Death Notice text is now no longer white.
Fixed random team selection not choosing GRN or YLW
Changed the YLW Death Notice color to be more visible
Added dynamic lights for the muzzleflashes and the Flamethrower(sic)
Fixed the missing Spy masks (Dr.PySpy)
Added the Fishwhacker
Modified the FGD
Additional model and texture fixes/improvements by Game Zombie
Model fixes by kida
Engineer Shotgun missing a glove texture (I initially mapped it to use engineer_handr_green and _yellow, but apparently those don't exist and the viewmodels still use engineer_handr_red)
Engineer Pistol missing shell ejection
Demoman Grenade_Launcher(sic) missing v_model and also fixed it using that messed up gold texture
Sniper SMG missing shell ejection
Medic Syringe Gun now doesn't have stretching polies(sic) when he goes to reload