Current details to root Galaxy S2 GT-I9100T

Hi, I have been poking around the forums looking at how to root my device. I can't find anything recent the most recent is from 2011.

Can anyone point me in the right direction for which way to do it these days or will it still be the same and I will just have to use an updated ROM of jellybean or similar?

Sorry for the noob's questions but this is all new to me, I'm reasonably tech savy but this seems a bit out of my league.

Current Phone Info

Model = GT-I9100T
ver = 4.1.2
Kernel = 3.0.31-889696 dpi@DELL230 #3 SMP PREEMPT Tue Apr 23 16:15:11 KST 2013
Build = JZO54K.I9100TDVLSK

Carrier = Telstra Australia

Thanks, Corey