Add tags/release branches to repository

[leolegenie]

Is your feature request related to a problem? Please describe.
Unless I am mistaken, currently the repository seems to reflect some kind of latest snapshot that happens to be uploaded at some specific time. We don't see the evolution of any classes or the project as a whole or see the release history, there are no release branches or any tags. This makes it difficult for the case where we want to analyze a problem in a non-latest-snapshot version as we can't be sure with what code state it was built on.

Describe the solution you'd like
Have the repository available at least with latest branches per major release (e. g. 4.x.x, 5.x.x, 6.x.x), ideally also have tags to see the evoluation of those branches.

Describe alternatives you've considered
Perhaps as an alternative solution, you could upload the latest snapshot of the repository per branch as a zip-dump somewhere, so we can self-serve and diff locally?

Additional context
N/a.