Yesterday i have updated my 17.9.2322 installation with the newest one (manually from Update section). Windows hanged on the first restart required after the update. Next day i have tried to restart a few times and it hanged again (power button glows, monitor goes into saving mode (no signal), but PC doesn’t shutdown). Went back to previous version and everything is fine now.
P.S. i wish Avast would preserve its setting upon uninstall, so i wouln’t have to configure everything after installing older version again…