On Thursday, Apple released iOS 8.4.1
with a variety of improvements for Apple Music and security improvements, and for jailbreakers, it's a sad day because iOS 8.4.1 closes the exploits
used by the TaiG jailbreak tool that was released to jailbreak iOS 8.1.3-8.4.
Fortunately, Apple is still signing iOS 8.4 right now, so if you upgraded to iOS 8.4.1 by mistake, or you're at an earlier version of iOS, then you can still get to iOS 8.4 for the time being.
There are a few reasons you might want