Tor Browser 13.0.3 is now available from the Tor Browser download page and also from our distribution directory.
This is an emergency release which resolves a critical bug in the tor domain isolation system initialization. Please see tor-browser#42222 for more details.
If you find a bug or have a suggestion for how we could improve this release, please let us know.
The full changelog since Tor Browser 13.0.2 is: