Apple released iOS 6.1.2 this morning to patch an Exchange calendar bug, but it appears this version can still be jailbroken on the iPad mini and iPhone 5 (for now) via evasi0n, notes @planetbeing:
Not yet able to test all devices, but it's looking good for 6.1.2. iPad mini wi-fi and iPhone 5 are still jailbreakable.
— David Wang (@planetbeing) February 19, 2013
If you are currently jailbroken and want to update, you will have to backup, do a complete restore with iTunes to iOS 6.1.2, activate and recover your backup then jailbreak with evasi0n. Of course, this sounds like a lot of ‘work’ so only do so if you really want to get on iOS 6.1.2.
Update: evasi0n 1.4 is coming later this afternoon to support iOS 6.1.2: