It appears that the recently-released Linux Mint 21 no longer has libssl1.1:
root@bullwinkle:/home/dan# apt install tor deb.torproject.org-keyring
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
tor : Depends: libssl1.1 (>= 1.1.1) but it is not installable
Recommends: tor-geoipdb but it is not going to be installed
Recommends: torsocks but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
root@bullwinkle:/home/dan# apt search libssl
p libssl-dev - Secure Sockets Layer toolkit - development
p libssl-dev:i386 - Secure Sockets Layer toolkit - development
p libssl-doc - Secure Sockets Layer toolkit - development
v libssl-doc:i386 -
p libssl-ocaml - OCaml bindings for OpenSSL (runtime)
v libssl-ocaml-aifn8 -
p libssl-ocaml-dev - OCaml bindings for OpenSSL
v libssl-ocaml-dev-aifn8 -
p libssl-utils-clojure - library for SSL certificate management on
i libssl3 - Secure Sockets Layer toolkit - shared libr
p libssl3:i386 - Secure Sockets Layer toolkit - shared libr
Is anyone working on this update for Tor?
Thanks.