Support for iOS 4.2.1 on every device that is compatible, except for the iPod touch (2nd generation).
What is Archived/Archiving?
As dictionary.com explains
a place where public records or other historical documents are kept.
Note: Jailbreaklibrary nor its website maker/developer is not responsible for any of the jailbreak software “Archived” here. Each software “archived” belong to their respected developer(s) and I will don’t take credit for the jailbreak software. (Archived Explained on the “Archiving” tab)