We've gradually been making modifications to our private channel, incrementing the version each time, and our /Developer/Apps/Packages/ page shows this channel currently at version 1.20. The next and only available version beyond this is 2.0. I guess it probably won't be a big deal for our next iteration to become version 2.0, but it doesn't necessarily make sense from a development standpoint. It would be nice to have the possibility to go to 1.99 or beyond. Does 2.0 also allow increments to 2.20? I've searched around briefly and not finding any documentation about this yet. Is it documented anywhere, can anyone explain the version numbering system?
I'll take a look and file a bug if needed. Meanwhile, don't worry about it, leave it at 1.20 and increment the version values in the manifest file, these are the ones we really care about because it helps QA determine if they are testing the correct version of your channel.