Surely this is a good news, since many iPhone users still rely on this Windows-only utility to gain jailbreak. But sadly, as I mentioned on the first paragraph that Sn0wBreeze 2.9.4 only supports A4 device to which it doesn't support both A5 and A5X chips (like iPhone 4s, iPad 2 & 3, Apple TV 3G), because there is no bootrom exploit available to be used to jailbreak those devices.
For memory refreshing that Sn0wBreeze is using Geohot's limera1n exploit in order to pwn custom firmware for A4 processor.
Below is the changelog of Snowbreeze 2.9.4 from iH8Sn0w you can read.
What is New?And for those who have their phone unlocked and wish to keep their iPhone 4 or 3GS baseband, better not use it, since there are more promising and reliable solutions offered like Absinthe 2.0 or Dev Team CLI tool to jailbreak iOS 5.1.1.
Added the 5.1.1/9B206 untether that was released with today’s absinthe update.
Added 5.0/9B206f (Apple TV 2) support.
Minor UI changes (thanks @icj_!).
If you wish to jailbreak your iOS 5.1.1 using Sn0wbreeze 2.9.4, you can head to this page as it contains the instructions. Albeit the page is using Sn0wBreeze 2.9.2 or 2.9.4 but the tutorials there are applicable for 2.9.4. Except use iOS 5.1.1 IPSW where necessary with this latest version of Sn0wbreeze and skip the booting tethered part with iBooty as v2.9.4 supports full untethered jailbreak on the latest firmware.
Download Sn0wbreeze 2.9.4 for Windows.
You can then Untethered Jailbreak iOS 5.1.1 using Sn0wBreeze 2.9.5.