Also added is ”Steam Cloud support” for key bindings, so your control configurations are kept online, and for ”custom spraypaint images”.
The Highlander mode only lets one of each class be present on a team so that means co-operation becomes vital to survive the match. See below for the full patch notes.
Engine
■ Enabled Steam Cloud support for key bindings and custom spraypaint images
■ Added Options->Multiplayer->Advanced option to toggle off/on: default is on
Team Fortress 2
Added new Highlander mode
■ 9 players allowed per team
■ Restricts each team to 1 of each class
■ Use mp_highlander (0/1) to toggle off/on: default is 0
■ Added “bots” to the server’s sv_tags convar if the server is running bots
■ Fixed a weapon name localization issue
■ Fixed the “tf_teamtalk” server convar not controlling text chat between living/dead teammates
Updated the map CTF_DoubleCross
■ Fixed the map not ending correctly when using mp_timelimit
■ Changed to prevent Engineers from building on top of the shack in each base
Updated the map Arena_WatchTower
■ Fixed a case where players could open and get stuck on the starting gates before the round start
■ Improved clipping to prevent people from getting out of the map
■ Optimized the map for better performance
Source: Eurogamer