Log Message:
tor-browser: update to 10.5.4.

This version updates Firefox to 78.13.0esr. This version includes
important security updates to Firefox.

Warning:

Tor Browser will stop supporting version 2 onion services very
soon. Please see the previously published deprecation timeline.
Migrate your services and update your bookmarks to version 3 onion
services as soon as possible.

The full changelog since Tor Browser 10.5.2:

    Windows + OS X + Linux
        Update Firefox to 78.13.0esr
        Update NoScript to 11.2.11
        Bug 40041: Remove V2 Deprecation banner on about:tor for desktop
        Bug 40506: Saved Logins not available in 10.5
        Bug 40524: Update DuckDuckGo onion site URL in search preferences and \ 
onboarding