Apple has released iOS 9.3.4 on Thursday with "important improvements to the security" of iOS.
On the other hand, we understand iOS 9.3.4 actually just kills the semi-untethered jailbreak for iOS 9.3.3. As a result, it's highly recommended that you get your devices to iOS 9.3.3 and jailbroken if you value having a jailbreak at all.