Hi, again!
It would be nice if you do not immediately remove older deb packages from your atp repo. If your hosting is running out of space, there are lot of free or almost free file hosting alternatives :) Absence of older packages causing not trivial problems if I have older firmware and need to rebuild something for it.
So, please provide us access to older deb versions archive. Packages for supported Ubuntu LTS editions would be enough for many cases.
Thanks and regards