Comment 12 for bug 1957932

After sitting down with some members of the MIR team and an archive admin, here's our plan for future rustc releases:

We'll go for versioned source packages, so that packages that are stuck depending on older rustc versions for some reason can still work. To avoid having too many versions entering the main archive though, we'll upload all the releases to a PPA and will binary-copy the versions that are required by one of the packages, e.g. Firefox. Once that version hits the archive, we 'll upload a no-change version to ensure that the package in the archive is reproducible. Essentially, we're doing a sort of bootstrap for each version.

I still need to figure out the details of how to implement this without breaking existing code, that'll likely be tomorrow's update.