iOS 5 Beta 5 was released last week for developers, the question which asked with every iOS release is that either it can be jailbreak or not? Well iPhone Dev Team has just released an updated version of Redsn0w 0.9.8 beta 5 which will tethered Jailbreak iOS 5 beta 5 on iPhone 4, 3GS and iPod Touch 4G and 3G.
iPhone Dev Team says:
Redsn0w has been updated to 0.9.8b5, adding support for Apple’s new iOS5 beta5 (point it directly at the beta5 IPSW). Please use this only if you’re a jailbreak app developer with a legit Apple dev account, and remember it’s a tethered jailbreak for now!
It’s important to stress that it’s currently impossible to jailbreak iPad 2(s) on anything above iOS 4.3.3. Redsn0w only works with any iPod touch, iPhone and the first-generation iPad.
The step by step guide to jailbreak iOS 5 beta 5 for iPhone, iPad and iPod Touch is posted here which is same for both Mac and Windows users. If ever you reboot your device just connect your device to computer and open Redsn0w and click “Just Boot Tethered Right now”.