I had 2 updates requiring reboot today in reForris. One from 8:34 and second from 11:53. I have rebooted at 19:00 and then wifi was gone.
Rollback to post snapshot after 8:34 update didn’t helped, had to rollback to pre update snapshot of this update.
Oh, and I have Omnia. Bad luck that I had reboot at this time 
After I had done switch-branch hbk on Turris 1x, pkgupdate failed on inconsistent: Requested package kmod-fs-fscache that is not available.
Removed it from /etc/updater/opkg-auto.lua and update started.
Now it is running and for rainbow there is still some command missing, I could not find it as I was lazy but as rainbow is log script I seen same thing on omnia TOS 6 so this bug is there for a while since summer holidays.
INFO:Running postinst of rainbow
Command failed: Not found
Command failed: Not found
WIFI6 are back 
after latest update. Thanks @Pepe
After today’s update on Turris MOX, I don’t know how, but wrong DHCP values were assigned to my devices. I have a WiFi AP (in access point mode) connected to MOX and for some reason, as a gateway IP was assigne the IP of the WiFi AP, not the MOX IP. I had to disconnect the AP and restart MOX for the configuration to work properly. This never happened before.
And as a bonus, after the update, the latency between LAN device and MOX changed from ~0.4ms to ~0.6ms.