January 26, 2017 Patch

{{Patch layout
 * current = 2017-01-26
 * source =
 * source-title = Dota 2 Update - January 26th, 2017
 * before = 2017-01-24
 * after = 2017-01-27
 * notes =
 * changes =
 * Added the Dark Moon Event.
 * Added Winter 2016 trophies.
 * Your recent games tab now has a filter to show only Event Games or hide them.
 * Ability Cast Range indicator has been added for {{A|Unstable Concoction|Alchemist}}.
 * {{code|shivas}} is now an alias for {{I|Shiva's Guard}} in Item Search.
 * You can now hover over the abilities on the Kill Graph.
 * The shadow on the chat text has been slightly altered.
 * A "Play " button has been directly added to the Custom Game page in the Arcade Tab.
 * A typo in the name of one of the chat regions in Philippines and Finland has been fixed.
 * Bots now have chat commands to notify of the power ups and runes in the game.
 * {{A|Sadist|Necrophos}} tooltip has been updated.
 * Response rule updates for {{rune|arcane}} for {{H|Disruptor}}, {{H|Doom}}, {{H|Dragon Knight}}, {{H|Drow Ranger}}.
 * Some minor updates to the audio mixer for better audio output from various objects in the game.

Promotional

 * Comes with purchase of real life Mirana sculpture.

Update 2

 * Fixed an issue with a missing module client on Linux which prevented the game to start.
 * Added Trophy effects for Battle Cup for the winter version.
 * Some minor visual updates here and there.
 * Fixed the item description of Dark Moon Baby Roshan not showing up.
 * Added response rules for, , ,  and.
 * Turned off play looping on a couple of waterfall related sound effects.

Dark Moon
}}
 * Fixed a small bug where the duration of the day counter was not accurate.
 * A few other changes to fix bugs and some minor tweaks to the mode were made.