Jailbreak iPhone and iPad users were given a huge scare when Apple launched iOS 8.3 as the update firmware came out with tons of security patches that is aimed at preventing future jailbreaks.
Popular jailbreak developer, MuscleNerd, went as far as Tweeting that there are a total of 39 security fixes with iOS 8.3 and warns the jailbreakers against updating to the latest firmware.
This basically makes iOS 8.3 a tough nut to crack, just like how it was in the transition between iOS 7 and iOS 8. Even the new entity, Taig, has failed to give an immediate response to iOS 8.3 and this suggests that a long time is needed before the new iOS can be jailbroken.
So at the moment, there is no jailbreak available for the iOS 8.3 and it is best for jailbreak fans to stay away from the official update until further notice.