Comment 6 for bug 1638714

So for 2.3 series, since we are in minor releases, we can and have modified the error message to be slightly better.

For 2.4, we'll have a slightly different approach that I'll continue working on that will introduce a series of pre-checks. These will be run before an upgrade (or a dry-run) to specifically check versions (and other necessary bits in the future) and abort upgrade early before we hit internal errors.