Quake Live is no longer free. The once F2P shooter went from its own standalone launcher to also being available on Steam to being a Steam only game. Once the final transition came where it was only available on Steam, the free price was dropped in favor of a base $9.99 (USD).

In addition, the team at id Software responsible for Quake Live also quietly dropped the subscription service, seemingly without advanced notice to those with active subscriptions. On top of all of that, they reset everybody's stats without warning. The Steam Community posting for the game includes some additional details.
Subscription Service Retired

By retiring our services and subscription service, all players now have the same benefits and features in-game. All players can participate in map voting processes, have full access to customize their game to the same degree as others, and have the ability to run their own Listen Servers and configure their matches to their own liking. Players wishing to have more control over how they play now also have new callvote options, allowing them to opt into some of our newer gameplay mechanics such as Starting Weapons, Global Ammo, and Item Timers. Over time we found that these features were effective in some modes more than others, and so modes like Free For All now have loadouts disabled by default.

If you have an active Pro subscription, and you failed to download the game through Steam before this launch, please contact customer support for assistance.

On the upside, this new integration means that there is full Steam Workshop support for new maps, game modes, player models, and more.