Last night, Apple pushed its latest version of iOS, iOS 6.1, to its servers. This updates targets iPhone, iPad, and iPod.

However, before you update, heed these words:
If you plan to jailbreak your iDevice, you can update to iOS 6.1 as planetbeing has confirmed that iOS 6.1 is still vulnerable to the exploits that are used in the yet-to-be-released jailbreak. BUT, musclenerd cautions users on updating via iTunes rather than over-the-air; MuscleNerd offers some insight as to why this is necessary, “a few reasons: OTA is more time consuming for us to test, and it gives you different SHSH blobs than normal restore.”

So just to be on the safe side, update through iTunes.