This is an improvement over the last public beta release 0.5.1.0. The changes in these updates are as follows;

Launcher:
1. Added ability to manually check for updates.

Game:
1. Reverted Fluttershy back to Aurora 0.4.1.0.
2. Added a fully remastered soundtrack.
3. Applejack now has a new mode select, which is also broken.

Update via the launcher, if you don’t have the game, download it here.