@Dazrin: Nope, it's been a while since (most) of the (common) K2/K3 stuff started to play nice with official updates
.
Given the age (in a good way, that's not that old ^^) of the versions you're mentioning, nope, probably not worth updating, especially if everything's working, and you don't intend to add more hacks.
That said, if you want to update the jailbreak, you can (and should) always use the latest uninstaller (that's applicable for all the stuff in this thread
).