Download:Update #2 - July 16: The “dev3” version covers today’s 6.0beta3 release (and also adds explicit support for 6.0beta2). Please point redsn0w at the 6.0b3 IPSW in order to jailbreak beta3 and boot tethered.
•redsn0w 0.9.13dev3 (OS X)
•redsn0w 0.9.13dev3 (Windows — run in Administrator Mode)