August’s release focuses on a lot of clean-up as we head towards an LTS release later in the year - some old or underused platforms have now been removed; many project-saving, performance, or stability changes have been made; and we have made a big improvement to tile-encoding in rooms, which does require a change in project version because older GameMaker versions will not be able to read those tile layers (so please do read the release notes linked-to below!).

In addition to those very important stability changes, we also added: Feather has a lot more customisation options in Preferences; several more filter types can be found in the Room Editor; new audio functions/arguments so you can control playback more easily; the browser-based platforms now support the use of virtual keys and clipboard functionality in your games; and rollback now supports chat functionality.

You will also find a large number of bug fixes and other new additions listed in the full notes:
IDE Notes[gms.yoyogames.com]
Runtime Notes[gms.yoyogames.com]

This is an important bug-fix update to the original .0.23 release, as it fixes several in-game bugs and also some submission issues for console developers. There are also some more fixes for Feather and various other improvements throughout.

Please see the release notes for the full info:
IDE Notes[gms.yoyogames.com]
Runtime Notes[gms.yoyogames.com]