A few days after version 1.1, the Evad3rs team has released another update Evasi0n 1.2 useful tool to jailbreak the iPhone and iPad updated to iOS 6.X . This is fix all error for Jailbreak the iPhone 5 and iPhone 4 series for iOS 6 and iOS 6.1.
This update (1.2) can be downloaded from the following link:
The update should disable the ability to install new version of iOS via OTA, so as to avoid the risk to cancel the jailbreak, and fixes a bug related to the time zone that, on some occasions, it is not displayed correctly.
If you do not have the problem of time zone and you are sure not to update to iOS error when it launches a new version, then you can stay with the current jailbreak.