Instructions on how to jailbreak and unlock your iPhone 3GS on iOS 4.2.1 firmware using RedSn0w for Windows. This tutorial will show you how to upgrade your baseband to the iPad baseband if needed.
Pod2g has tweeted to accuse iH8sn0w and winocm of burning a valuable root exploit that could have been used for future jailbreaks to release p0sixspwn, a jailbreak for iOS 6.1.3, 6.1.4, and 6.1.5.
Luca Todesco, also known as qwertyoruiop, has successfully jailbroken his iPhone 6 running iOS 9.2.1 according to a screenshot posted on his Twitter account.