Update Notes for 1.0.9 (macOS only)

- Fixed rendering issues on macOS Big Sur
- Fixed launch crash on older macOS versions

The older macOS build can be found in macos_old branch, in case the newer build doesn't work on older macOS versions. To change the branch for a game:

1. Right click the game, and select Properties....
2. Select Betas.
3. Select the branch from Select the beta you would like to opt into drop-down list.
4. Close the window. The game should update to reflect the selected branch.