TaiG Jailbreak for 8.3 released by the TaiG team. It’s support thought iOS 8.1.3 to 8.3 and TaiG jealbreak 8.3 released only for Windows.
Keep in mind that lots of things still need to be updated for iOS 8.3, including Cydia Substrate. Thus, support is limited with regard to jailbreak tweaks and apps.
The tool, Is dubbed TaiG 2.0 you can download from here: TaiGJBreak_EN_2000.zip