December 21, 2011 Patch

{{Patch layout
 * source = http://store.steampowered.com/news/7063/
 * source-title = Dota 2 Update Released


 * before = December 16, 2011 Patch
 * after = N/A


 * notes =

HEROES

 * Added Bounty Hunter!
 * Beastmaster
 * Fixed Wild Axes being left behind when blinking to a location with a different z-value while they're in-flight.*
 * Ursa
 * Fixed fury swipes to apply the effect before the hit.

UI

 * "Watch Game" user menu option now also shows up for friends watching a game. Clicking it will take you to the same game they're watching.
 * "Watch Game" user menu option shows up for friends in practice lobbies with "allow spectators" turned on.
 * Added timestamps to main menu chat.
 * Added an announcement for when spectator sizes change in game.
 * Spectator names can be clicked in chat to commend, report or ignore them.

GAMEPLAY

 * Fixed server crash that could happen occasionally as the ancient is destroyed.

BOTS
}}
 * Improved how bots predict missing enemy locations.
 * Added level of desire to all the things that bots currently avoid (mostly lessening the avoidance desire of things that they don't care much about).
 * Made bots less spammy about movement when moving to a location within a lane.
 * Increased range at which bots will consider coming to an ally's defense.
 * Increased bot desire to retreat when they're dangerously low on health.