Recently came across a tweet a couple of reports that, that the jailbreak on 6.1.4 was tested by a hacker under the nickname Winocm. But here we can hardly expect a public release before the jailbreak iOS 7. the main thing, time to put 6.1.4 and jailbreak it before, until Apple stops issuing SHSH and APTicket certificates for them.
News taken from here http://yablyk.com/jailbrea-ios-6-1-4-na-iphone-5-poluchen/.