Having multiple versions of the same package is neither standard nor trivial.
"Having one version of a package per distribution/architecture/component/type quadruple is heavily built into the database layout and all the internal logic.
If you want different versions of the same package in the same architecture with reprepro, you need to either store them in different distributions, or you can create snapshots of distributions."
- we could use a distro snapshot for each version of airtime - but that's lame and lots of overhead.
- we could add the version to the package-name and make a meta-package which depends on the latest version - also lame
Realistic: Only keep the last two versions and use a dedicated distribution for those. Actually we already have that with the testing repository.