Recently, hacker iH8sn0w released version 2.9.2 of his popular jailbreak tool, Sn0wBreeze. The update had added the ability for users to jailbreak their iPhone 3GS and iPhone 4 running iOS 5.1. It is still tethered.
Now earlier this week on 12 March 2012, iH8sn0w seeded another version of the software, bringing it to version 2.9.3. This update includes a minor bug fix. It also features new jailbreak support for Apple TVs on iOS 4.4.3 and 4.4.4.
iH8sn0w published the full change log to his blog:
What is New?
*Added Apple TV 2 support for iOS 4.4.3/4.4.4.
*Fixed rare issues with iOS 5.0.1 where it would halt on the Apple upon boot.
Just adding this in mainly for users who dumped their SHSH blobs. On the initial boot, the Apple TV may have a black screen for 60 seconds after setting up the Apple TV. This is normal.”
This jailbreak tool is only for it is for Windows users.
Source: iDownload Blog