Juli Clover, writing for MacRumors:
Apple cracking down on VPN-based ad blockers that are designed to block ads in third-party apps.
After submitting an appeal to the App Review Board, a member of the Review Team contacted me directly via phone and informed that Apple has officially changed their policy regarding VPN/root certificate based ad blockers on the App Store and is no longer accepting updates of apps, which directly block content in third party apps.
According to Apple, these apps won't get any new updates. The only officially allowed ad blocking method is now Safari Content Blockers.
Perfect time to switch to a content blocker which uses secure Safari content blocker APIs, not a shady VPN middleman.