On Tuesday, the TaiG jailbreak team launched an updated version of the iOS 8.1.3-8.4 jailbreak tool for the Mac OS X platform that was just released on Sunday.

Version 1.1.0 of the tool is now available on the TaiG Web site, in which the change log claims to fix a problem that causes a blank screen on Mac OS X 10.9 Mavericks.
Originally Posted by TaiG
TaiG for Mac V1.1.0 fixes the blank screen on OS X 10.9.

The tool doesn't add any new features and if you're already jailbroken with TaiG, there is no reason to re-run the tool over your existing jailbreak, but you still might want to download the latest version of the TaiG jailbreak tool for future jailbreaking purposes, whether you're jailbreaking a new device, or you're re-jailbreaking a device that you've ran Cydia Impactor on.

The jailbreak process continues to be the same as outlined in our guide, so if you want to follow our jailbreak guide to jailbreak your device with TaiG 1.1.0 on your Mac,

TaiG 1.1.0 can be downloaded from this link.

Source: TaiG