Disable SIP before running the installer.
- Added the Atheros Support for macOS Catalina.
- Added macOS detection for necessary file installation.
- Backing up the original IO80211Family.kext for macOS Catalina to desktop.
- No 5GHz network detection.
- Rebuilding system caches with SIP enable ends up with errors, so you need to disable SIP from recovery partition.
- After each major macOS Catalina update you may need to run the installer.