On June 19th, Apple released a document describing how loading secure kernel extensions (.kext) would change with High Sierra and how this would impact enterprise customers.[…]
http://blog.eriknicolasgomez.com/2017/07/25/Kextpocalypse-High-Sierra-and-kexts-in-the-Enterprise/
https://developer.apple.com/library/content/technotes/tn2459/_index.html