Personally I would wait rather than do a clean install as there is no guarantee it would be for a different build number.

Mine shows 17.1.2286 as version and 17.1.3394.30 as build.

I’m in no rush to get any update I will let it happen naturally or when informed about a new program version/update in the forums.

I don’t see the connection for the topic title Avast Emergency Update Question.
Although the Avast Emergency Update, AvEmUpdate.exe runs according to a schedule task (1:30AM and 1:30PM on mine). But I would periodically reboot to trigger it, I always shutdown my system at night, so in theory I would have it if there was one available.