In the article regarding the release of the update iOS 8.4.1 we informed you that if you are jailbroken you should wait to update. Now it is confirmed that caution was in order, as the Redmond Pie server has published information that the latest iOS 8.4.1 removes the jailbreak from iPhone, iPad and iPod touch and of course it is not possible to jailbreak again on this version.
Of course, it's all due to the correction of several bugs that the hacking team was just using to break into the system. iOS and the possibility of installing a jailbreak on some of the iOS device. Apple published dokument, where you can find details about all the patches, and for each of them, the company politely thanked the TaiG team for helping them "discover" the bug and allowing the company to fix them all. On the other hand, the TaiG team Applu is not very grateful right now and is looking for more bugs that would again help jailbreak any iOS device.
So if you have iOS 8.4 iOS 8.3 iOS 8.2 or iOS 8.1.3 jailbreak, so for now on the latest version iOS Do not update to 8.4.1 and wait until the team finds a solution, which we will definitely inform you about.
*source: redmondpie
this feels like fighting windmills to me. Every time powerful statements, how many security flaws, and how it will not be possible to jailbreak in the future - but the result is always the same.