Unexpected update behavior

I installed https://downloads.leap.se/RiseupVPN/osx/beta/RiseupVPN-0.21.2-12-g1c48e16.dmg over 0.20.1 (IIRC). The new installation didn't overwrite the old installation. The reason why is that the older version can be found in /Applications/RiseupVPN.app whereas the new installation path is /Applications/RiseupVPN.

I think it makes sense to remove the old version completely during the installation process. I was able to make the new RiseupVPN version running after I uninstalled the old one manually.