The version I can download from your site is 23.1.7883.0 but the program tells me the update available is 23.1.7883.773. Any idea when link will be updated?
https://www.avast.com/download-thank-you.php?product=FAV-AVAST&locale=en-ww&direct=1
i believe it depends where you live and what version of avast you are using. ive heard it is rolled out in batches.
my 773 update came late last week and before the update it totally buggered up my pc for around 8 hours until i found the update and then everything worked fine again.
strangely desktop background dissapeared, all folders on desktop said i did not have permission to open. then said i did not have admin permission. was almost ready to do a clean win 10 install and last thing i checked was avast updater.
ran the update, restarted and everything worked again and has been fine ever since. very strange.
go UI > menu > settings > update > check for updates. ive got set to auto update but mine was sitting there in red to update now.