There is no Jailbreak for iOS 8.4.1+ at this time. Only iOS 8.4 and under are jailbreakable.
8.4 Jailbreak - taig.com/en
an 8.4.1 Jailbreak is being developed by a apparently 'well-known' dev, but I'm pretty sure it's a hoax.
@Pimp there is no 9.0.1 Jailbreak coming, that was never mentioned.
@drummer YouTube "jailbreak" videos are mostly click-bait, better to use reddit.com/r/jailbreak for jailbreak information.
Jailbreak teams tend to release jailbreaks on short notice, so it may just come tomorrow. Who knows? Be patient, and it will come.