Here is the freshest information about iOS 8.3 untethered jailbreak status that is currently known. What is clear now is that iOS 8.3, iOS 8.2 and iOS 8.1.3 jailbreak exploits used in TaiG, Pangu, PP jailbreaks for iOS devices have been patched by Apple with the launch of latest firmware update.
If you have an jailbroken device than you have already known all aspects of the updating process. You can start to upgrade to new Apple's software update when it will be established as safe by knowledgeable jailbreaking community member. Less familiar jailbreakers currently must avoid updating to any of iOS 8.3 / iOS 8.2 / iOS 8.1.3 released software updates.
The Freshest Info About iOS 8.3 Untethered Jailbreak Status
Apple has launched iOS 8.1.3, iOS 8.2 and now iOS 8.3 updates and has added to the them patched exploits that were used in the Pangu8, TaiG and PP jailbreak tools. So if you’ve been looking forward to jailbreak it is recommended not upgrade to any of the iOS 8.1.3, 8.2 or 8.3 updates at any cost.
Cupertino giant has revealed all the exploits that it has patched in iOS 8.1.3, 8.2 and 8.3 updates in its support article, and also accentuated the Pangu and TaiG teams for utilizing them. It has also patched exploits discovered by i0n1c (aka Stefan Esser).
So if you stuck on the older jailbreakable version of iOS 8 or even iOS 7, it is best to stay there if you want to keep using jailbreak tweaks and apps from Cydia until a new jailbreak tool is made available for 8.3.
Apple has launched iOS 8.3 software update last week . There is still no jailbreak available. But iOS 8.3 untethered jailbreak status could change in the near future. Unfortunately, currently do not upgrade until it is deemed safe for future jailbreak release.
Of course, if you don’t plan to jailbreak either now or in the future, then you can download and install the iOS 8.3 software update on your iOS device.