The iPhone Dev Team has released now redsn0w 0.9.6rc8 to jaibreak iOS 4.2.1 after releasing redsn0w 0.9.6rc7 with one-click tethered iOS 4.2.1 boot support .
For all those using the custom tethered bootlogo cmd line option in redsn0w, rc8 now reports why a given png is invalid.
If you rely on Ultrasn0w unlock then stay away from this latest redsn0w update.
Download Redsn0w 0.9.6rc8 for Windows
Download Redsn0w 0.9.6rc8 for Mac
