Version mismatch between spigot/bukkit and github

[Toadby]

I was trying to compile QuickSell myself to edit it, and it looks like the version posted to spigot/bukkit (2.0.6) doesn't match the version on github (2.1)
Is there a way to get the source code of the release version?

Also, it's possible I did something wrong but 2.1 seems to have an issue where in the editor an item's price isn't displayed right. It looks fine in the prices gui so maybe this is intentional? I can make another issue if it is in fact a bug :)