New features include:

* Completely redone HUD and user adjustable scoreboard
* Totally rewritten Client/Server communication to cut the bandwidth usage in half
* New gamemode "Race". Try to get from start to end of a level as fast as possible. Available as free-for-all and team variant. Further allows to play with or without a qualification period.
* Added several new weapons (on-hand Grappling Hook, Port-O-Launch, T.A.G. Seeker, Heavy Laser Assault Cannon, Rifle)
* Map editor NetRadiant included
* Improved all effects for eye candy and tweakability
* All maps recompiled with external lightmaps which allow for much crisper shadows
* Added maps desertfactory (DM, TDM, MinstaGib), racetrack (Race) and made aggressor support Key Hunt
* New player sounds, announcer sounds/voices, textures, crosshairs, weapon models, effects and menu skins
* Added support for video capture to OggTheora
* Integrated the Havoc mod into the menu! Havoc servers use quite different physics and weapons, give it a try!
* Fixed a crash with ATI drivers on shutdown or vid_restart
* Fixed several problems with lagging gameplay/crashes/wrong display of effects
* Improved bots (teamworking, bunnyhopping, swimming, better way finding, support for ladders, less CPU usage, faster map loading)
* Better visual display of carried items (Strength, Shield, flags and keys)
* Better parental guidance support with cl_gentle and cl_nogibs
* Lots of tourney-related features (timeout/in, spectator-slots, allready, warmup mode, lockteams, unlockteams, movetoteam_red/blue/..., nospectators, records, cointoss)
* Added some effects customization options like cl_casings, cl_weaponpriority
* Many more map entities allowing for more dynamic maps
* Restructured and improved menu: demos menu and multiple campaigns are back, also added an advanced menu containing ALL settings of the game