Raspberry Pi Zero W older Gateway OS versions

Since the latest Gateway OS is not letting me correctly install the USB firmware of my wm1302 module, I wanted to try older versions of the Raspberry Pi OS but I cant seem to find the older sd card factory images.

Question is:
Where can I find the older Raspberry Pi Gateway OS versions of the sd card images?

Please see Index of /downloads/chirpstack-gateway-os/raspberrypi/.