Is your feature request related to a problem? Please describe.
The "new version available message" doesn't explain where you can get the next version of Jamulus from. This might confuse new users
Describe the solution you'd like
Either a link to sourceforge or to the upcoming GitHub latest release page
Describe alternatives you've considered
A link to the GitHub latest release page in the menu labeled (Get releases (you currently have version x.y.z) ...)