There’s good news and bad news. The good news is that jailbreak hackers have exploits saved up for another jailbreak release in the future. The bad news is that we will not be seeing a new jailbreak any time soon — at least until after iOS 7 comes out.
Evad3r hacker pod2g confirmed today that there will be no jailbreak for the current iteration of iOS, 6.1.3. It “would be stupid to burn exploits for 6.1.3” since it’s a minimal update, according to pod2g. “We’re waiting for a major release.”
“As jailbreaking becomes harder and harder expect fewer and fewer” releases, said Joshua Hill, another prominent hacker who has worked on iOS jailbreaks in the past. Hill also believes that the next jailbreak release won’t come until after iOS 7 is made available to the public. Apple typically unveils major, new versions of iOS at WWDC in the summer.
You can currently jailbreak iOS 6.0-6.1.2 with Evasi0n, but once you update your device’s software to 6.1.3, there will be no way to re-jailbreak for a long time.