Existing players will find a conversion launcher available next time they boot up Quake Live, while all new players will be prompted to download the standalone client when they visit the Quake Live website and register. All profile data and stats have transitioned over to the standalone game.
Quake Live, first revealed in 2007 as Quake Zero, is a free-to-play version of Quake 3. The game offers optional premium subscriptions yielding additional arenas, clan support and queue and in-game advertisement bypassing. An FAQ has been posted over on the Bethesda Blog to help ease the transition.