We are almost close to a new version of Greenpois0n to support iOS 4.2.1 jailbreak on iPhone 4, 3GS, iPod touch 4G, 3G and iPad.Developer Joshua Hill behind Greenpois0n jailbreak (Chronic dev-team) has confirmed that he is going to release an updated version of GreenPois0n with support for iOS 4.2.1 jailbreak as soon as he is done adding sandbox patches.
From the tweet:
iPhoneHelpr asking: I think the available latest build from the GP site is rc3_3
p0sixninja (Joshua Hill) replying: yea, at this point in time rc5 is right around the corner so we’re just pressing ahead to get it out asap
Greenpois0n RC5 will be tethered jailbreak for a while due to lack of time, Greenpois0n was scheduled to be release by the new year day but some more kernel patches in sandbox have to be applied, therefore, it has been delayed from its first targeted timeline.
rockybsr08 asking: I should clarify. Is it untethered on all devices?
p0sixninja (Joshua Hill) replying: no, i’ve been too busy working on updating it I haven’t had much time to work on exploits. I’m only human!
From the above quoted text,it is expected to see the tethered Greenpois0n within few days then it will be followed the untethered one when they got the enough time for that.
Thanks to redmondpie via coveringweb