October 21, 2015 Patch

{{Patch layout
 * source = http://store.steampowered.com/news/18960/
 * source-title = Dota 2 Update - October 21th 2015
 * before = October 16, 2015 Patch
 * after =
 * notes =
 * Added additional capacity to the Australian matchmaking region
 * Almond the Frondillo will now correctly vanish when his owner is no longer visible.
 * Added a new option to automatically add new items to your collection tab.
 * Fixed {{Hero ID|Alchemist}} illusion's {{Ability ID|Greevil's Greed|Alchemist}} sometimes giving gold to a player other than the one that owned the illusion
 * Fixed {{Hero ID|Keeper of the Light}}'s {{Ability ID|Illuminate|Keeper of the Light}} not appearing correctly.
 * Fixed a recent regression in the {{Hero ID|Tiny}} {{Ability ID|Toss|Tiny}} Compendium Challenge
 * Fixed a case where {{Ability ID|Sleight of Fist|Ember Spirit}} would not properly clear targets if it was interrupted by {{Ability ID|Activate Fire Remnant|Ember Spirit}} or by dying during Sleight of Fist
 * Workshop Importer: Fixed crash when importing some DMX files generated by community tools
 * changes =
 * Supporting strings for the new feature mention in the official changelog.
 * Added the {{code|dota_armory_automatically_add_new_item_to_collection}} <0/1> console command

Economy

 * Added description strings for the 2014 Compendium Gems:

}}