Which version of redsn0w should I use to jailbreak my iPhone 4s?

I wanna Jailbreak my iPhone 4s 5.1.1
Which version should I use?
A step by step instruction will be appreciated

Redsn0w 0.9.12b2
http://www.iphonehacks.com/2012/06/untethered-jailbreak-ios-5-1-1-iphone-4s-iphone-4-iphone-3gs-redsn0w.html
Rate please

Download Absinthe 2.0

http://greenpois0n.com/2012/05/absinthe-2-0-has-arrived/
choose your computer operating system from the right window.

and it doesn't need instructions.
You will have to click one button after you extract the program.
can't be easier!

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