[Tails-dev] Tails 4.20

Hi,

since upgrade from Tails 4.19 to 4.20, the WiFi connection disappeared. Cannot connect through wlan. Even with cable connection to wlan router it doesn‘t work. Error connection when I try to connect with new bridges which I got from bridges@???.
How can I downgrade to Tails 4.19? Which worked properly on different devices by wlan.

Thanks a lot and kind regards,
Chris