September 20, 2016 Patch

{{Patch layout
 * source = http://store.steampowered.com/news/24329/
 * source-title = Dota 2 Update - September 20th, 2016
 * before = September 19, 2016 Patch
 * after =
 * notes =
 * Fixed a few remaining low-end performance issues.
 * Fixed performance degrading over multiple games in the same session.
 * Fixed flying heroes being able to leave the intended play area by using directional move orders.
 * Fixed a recently introduced crash on exit from some custom games.
 * changes =
 * Some of the string tags used on the new post game screen have been tweaked so they are localization friendly.

Tournament items
}}
 * MarsTV Dota 2 League 2016
 * Dota 2 Professional League 2016