Yesterday, updated TBB (automatically) to 7.5.6 Linux x64.
Today, the default Tor check site (English language),
https://check.torproject.org gave message:
"Congratulations. This browser is configured to use Tor.
Your IP address appears to be: *5.79.xxx.xxx*
However, it does not appear to be Tor Browser.
Click here to go to the download page"
From the message, I assume the Tor devs want users to download, verify
& reinstall TBB because one check failed?
Question: what is the check process looking for (and where) to verify
this is TBB? Just a list of exit relays?
I got a new identity & tried again - same message.
According to several sources, it's quite possible the
check.torproject.org site is down or malfunctioning.