If you are looking for a "real" jailbreak (root access + Cydia) on iOS 10.3.4, reviews typically recommend comparing Taigone against these alternatives:

In simpler terms: on any device that has connected to the internet after a certain date, even if you stayed on the same iOS version.

The patch is significant because it prevents users from jailbreaking their devices using the Taigone tool. The patch also highlights the ongoing cat-and-mouse game between Apple and the jailbreak community, where Apple continually patches vulnerabilities and the jailbreak community finds new ones.

Because it doesn't use actual system exploits, it isn't "patched" by Apple in the traditional sense. Instead, Apple may occasionally revoke the enterprise certificates Taigone uses to sign its apps, making them stop working until they are resigned.