If you don't know which file to download, you want BackgroundMusic-0.4.0.pkg and you can ignore the others.
Changes since v0.3.2:
- Make sure the installer launches BGMApp as the logged-in user. (4c7eba3)
- Add app volume workaround for Google Chrome. See #61. (dfad77d)
- BGMDriver: Copy settings when a new client matches an existing one. (f61f998)
- Fix stale data when recording system audio #217 (40f0128)
- Add optional debug logging in release builds. (2c16773)
- Hopefully fix a segfault caused by BGM_PlayThrough. (488ed16)
- Fix apps failing to start audio after upgrading Background Music. (70a64de)
- Try to avoid using the discrete GPU on multi-GPU systems to save power. (f24a6cb)
- Workaround deadlocks when starting IO on macOS Big Sur. (c0ab98b)
- Added app volume and pan setting to AppleScript #457 (9765193)
- Add a bundle ID property for apps in the AppleScript API. (213c339)
- Installer: Retry if opening BGMApp fails. (0e0cc5f)
- Fix for issue #475 dropdown arrows move instead of doing something (24b248e)
- Fix installer errors on macOS Monterey due to removal of Python 2 (01217d2)
- Add app volume workaround for Microsoft Edge #597 (4608f4b)
- Installer: Fix post-install check for BGMDriver failing unnecessarily. (b2770f1)
- Show an error message if the user denies input device permissions. (89eebb0)
- Fix slider knob sizes. (d048287)
- Drop support for macOS 10.9. (d048287)