Is there a jailbreak for ios 6.1.3? - 2

I'm just wondering if there's a jailbreak out there for this update because I would like to jailbreak my ipod touch 4g and iphone 4

Yes you can on those devices but it is a semi-untethered jailbreak, look up on YouTube how to.

There's no current jailbreak for the devices with an A5, A5X, A6 and A6X processors