I have a link to a 3rd party package repository, for example something like this:
http://eddie.website/repository/apt stable main
There is a particular package available from this repository (for example, one of the packages in this repo is
How can I find out which versions of Ubuntu this particular package (and, similarly, other packages from any other 3rd party repos) is built for ?
I'd like to do this to find out if software I'm using already available on 18.04, or which older versions of Ubuntu are still supported by the software. It seems like I need to look at the "release" files in the repository, how do I get to them, and where is the info I need ?