September 08, 2016 Patch

{{Patch layout
 * source = http://store.steampowered.com/news/24081/
 * source-title = Dota 2 Update - September 8th, 2016
 * before = 2016-09-07
 * after = 2016-09-09
 * notes =
 * Improved performance on low frame rate systems.
 * changes =
 * The spacing on the post game scoreboard has been adjusted so that you no longer have to scroll to see the MMR.
 * The expiration date of the TI6 Event has been changed to January 1, 2030 as a temporary placeholder until the next Battle Pass is released.
 * Some very old unused systems pertaining to 1v1 MMR have been archived.
 * Some really minor updates to the grass maps in-game. Some of them got a little extra grass here and there while some of them were made slightly sharper.
 * Some minor updates were made to some map element material properties here and there.

Update 2
}}
 * The code for the reddening of the background during The International 2016 has been removed.