iPhone Dev Team released the third update to the program RedSn0w 0.9.15b3, allowing for jailbreak iOS 6. The new version fixes a bug that prevents the installation of firmware via iTunes.
RedSn0w 0.9.15b3 improvement is for affected Windows users who complained about the appearance of the “error 2601” when restoring the operating system on the iPhone, iPod touch and iPad, as well as the “error 14” during the “searching” files. In addition, iPad mini and iPad 4 users can use the new RedSn0w for saving SHSH blobs certificates.
Update #2 (Nov 1): Version 0.9.15b3 fixes the redsn0w “error 2601” that Windows users were seeing using the Restore button. It also fixes a related Windows iTunes error 14 for stitched files. Note that if you have a baseband, you should probably avoid stitching and simply use redsn0w’s native Restore (not iTunes).
Those lucky recipients of new iPad minis and iPad4s on Friday can use this redsn0w to save your 6.0 blobs off to Cydia. First connect your new device and turn it on, then use redsn0w’s Extras->SHSH Blobs->New and point it at the 6.0 IPSW.
Detailed on how to make the tethered jailbreak iOS 6 devices on A4, can found here. If you happen to be the owner of one of the earlier models of iPhone 3GS, then right now you can enjoy the benefits of a full untethered jailbreak iOS 6, download Redsn0w 0.9.15b3 for Windows or Mac, and using the instructions posted here.
The iPhone Dev Team developers also promised to release a compatibility update tomorrow of Ultrasn0w for iOS 6. Supports the same version of the baseband, that of iOS 5.x.