The iPhone DevTeam has updated redsn0w to v0.9.11b4 which completes the tethered JB support for 5.1.1 on A4 devices and earlier, including proper “Stitching” and “Custom” creation of NO_BB IPSWs.

» Redsn0w Updated With iOS 5.1.1 Tethered Jailbreak Support For A4 Devices

@pod2g has made a Untethered Jailbreak solution available for non-A5 devices. That means iPad 2 and iPhone 4S are obviously left out on this one, but the chronic devteam and iPhone devteam have been working hard to package it into redsn0w 0.9.1.0 and PwnageTool for everyone else. If you are interested in giving it a shot, you can grab it through Cydia and follow the steps after the break. » First Untethered Jailbreak For iOS 5.0.1 For Non-A5 Devices [How To]

This is just a quick note to let you know that Cydia is saving blobs for iOS 5.0.1 now. Using these blobs, you will be able to eventually downgrade your iDevices. You can use TinyUmbrella or Redsn0w to save your blobs. Read more about blobs and related tools here. » Cydia Is Now Saving iOS 5.0.1 Blobs

A beta version of redsn0w, version 0.9.6b1 has just been released by the Dev-Team. Redsn0w, version 0.9.6b1 enables you to jailbreak the iPhone3G and iPod Touch 2G on iOS 4.1 or 4.0. At this point redsn0w 0.9.6b1 is only available for OS X users, but most likely iH8sn0w will be working on a jailbreak for the Windows user. » Redsn0w 0.9.6b1: Jailbreak iOS 4.1/4.0 On iPhone 3G & iPod Touch 2G