I'm using the code below. It functions correctly on iOS 27.2 Beta 1 but crashes on iOS 27.2 Beta 2. API implemented here Xcode version - Version 27.2 beta (27B5019j) iOS Version - iOS 27.2 Beta 1 and Beta 2 behavior App Store region - Germany if (@available(iOS 27.2, *)) { [ATTrackingManager requestTrackingAuthorizationUsingExpandedInterface:YES additionalInformationAction:^{ NSLog(@"[ATT] Additional Information Clicked"); } completionHandler:^(ATTrackingManagerAuthorizationStatus status) { NSLog(@"[ATT] completion status: %ld", (long)status); }]; Resulted in a crash at runtime. No error at compile time. *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[ATTrackingManager requestTrackingAuthorizationUsingExpandedInterface:additionalInformationAction:completionHandler:]: unrecognized selector sent to class 0x28f3d0f80' *** First throw call stack: (0x1998ee8e0 0x19966c380 0x1999ee444 0x1998aa774 0x1998aaa30 0x1020a3a60 0x102fc8558 0x102fe1df0 0x103003dd8 0x102fd8340 0x102fd8280 0x1998a0614 0x19989187c 0x1998927e4 0x24643df24 0x19da6db54 0x1020a5264 0x1996e35b8) libc++abi: terminating due to uncaught exception of type NSException *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[ATTrackingManager requestTrackingAuthorizationUsingExpandedInterface:additionalInformationAction:completionHandler:]: unrecognized selector sent to class 0x28f3d0f80' *** First throw call stack: (0x1998ee8e0 0x19966c380 0x1999ee444 0x1998aa774 0x1998aaa30 0x1020a3a60 0x102fc8558 0x102fe1df0 0x103003dd8 0x102fd8340 0x102fd8280 0x1998a0614 0x19989187c 0x1998927e4 0x24643df24 0x19da6db54 0x1020a5264 0x1996e35b8) terminating due to uncaught exception of type NSException