RedSn0w 0.9.13dev3 Can Still Jailbreak iOS 6 Beta 4
MuscleNerd has confirmed that RedSn0w can still jailbreak iOS 6 beta 4 which was just released today to developers.
JB devs can continue using redsn0w 0.9.13dev3 with todays iOS 6 beta4 (keep pointing redsn0w at iOS 6 beta3 IPSW) http://is.gd/MCbq7A
You can download RedSn0w 0.9.13dev3 from here.
Those looking to jailbreak their iOS device can find the iClarified Jailbreak Wizard here.