WARNING: Don't update Visual Studio to 16.10 or newer - fixed
If you update Visual Studio 2019 to 16.10, you're not longer able to add new remote connections. Sadly this also affects existing connections.
We're working on a solution and keep you updated.
UPDATE
With the new beta4, the SDK Installer as well as the Visual Studio extension had been updated (even if a part of it is beta (the 13r2 SDK - see the beta forum for more information: https://forum.innovaphone.com/moodle2/mod/forum/discuss.php?d=26589#p73569), replacing the current versions because they are used for both, 13r1 and 13r2 beta.
So just get the latest installer by downloading it from the beta store or just by starting the old installer you have on your system (because the installer updates himself), and install the latest Visual Studio extension.
Please note that the version numbering had been chaned. So 2.0.27.0 (as of 02/06/2021) is the current, most up-to-date version.