@Bob3160 I also want to clarify that I also do not subscribe to the Avast BETA programme.
But I now have Version 24.2.6104 (build 24.2.8904.819), UI version 1.0.797, which I installed assuming it was an emergency update, as Avast tray icon had red X and saying "unprotected".
I for one would welcome an explanation from Avast devs as to why this has update has happened to regular Avast Antivirus users, if indeed it is an escaped BETA version masquerading as a PRODUCTION version. If anyone has an inside track to the devs, can they please seek a response.