This is a maintenance release. It doesn't add any new story content to the game.
Updates to the game
The demo has been updated too with the same changes, in addition to controller fixes.
Steam-specific updates
If you're unable to start the game after updating, please verify the local files.
You can do this by right clicking on the game in your Steam library and selecting Properties.
Then go to the Local Files tab and click on Verify Integrity Of Game Files.
If you have any problems with Cloud Saves, you can find local backups of the saves on your PC in the following places:
Windows: %APPDATA%/RenPy/Sickness-1392699346/
MacOS: ~/Library/RenPy/Sickness-1392699346/
Linux: ~/.renpy/Sickness-1392699346/
You can copy these files, then right click on the game in your Steam library and go to Manage -> Browse Local Files
Then go into game/saves, and paste the files you want to restore.
If you encounter any other problems, please report them on this thread.
You can also switch to the oldstable beta for the time being, but please note that saves from the new build won't work on the oldstable build.