These are instructions on how to jailbreak your iPod Touch 3G and iPod Touch 4G using Greenpois0n for Windows. Greenpois0n supports iOS 4.1 and iOS 4.2.1.
Instructions on how to jailbreak and unlock your iPhone 3G on the iOS 4.2.1 firmware using RedSn0w for Mac. This tutorial can update your baseband if needed for unlock.
P0sixninja has revealed that he will not be using his jailbreak exploits to release a jailbreak for iOS 6.1.3; rather, he will be holding them back for iOS 7 or iOS 7.1.
The iPhone Dev-Team has announced RedSn0w 0.9.15b1 which brings numerous new features including the ability to restore to older firmware not being signed by Apple.
The PanguTeam has released an updated version of its untether for the iOS 8.0 - 8.1 jailbreak, fixing an issue which could cause applications (particularly Safari) to randomly crash.
The PanguTeam has released an updated version of its untether for the iOS 8.0 - 8.1 jailbreak, fixing an issue which could cause your device to overheat due to excessive CPU usage.