I am currently 1.1.2 Jailbroken, Unlocked.

If I Upgrade to just regular 1.1.4

can I just just iLiberty+ to unlock + Jailbreak it?

also if I can should I restore( i forgot how to do that:P, please explain how) to 1.1.4

or just regularly upgrade to 1.1.4 before using iLiberty?