The delegate method : locationManager(_ manager: CLLocationManager, didRangeBeacons beacons: [CLBeacon], in region: CLBeaconRegion) is giving no values in beacons for iOS 18 beta iPhone device in XCode 16 beta while the same code works and gives correct beacons on same peripheral and central devices in iOS 17. Has something changed in iOS 18 beta or is it iOS 18 beta bug related to beacons?

We have BLE on a vehicle that acts as a peripheral and pairs with the user's iOS device as a central device. As we understand, the only way for a peripheral to be "remembered" for the next connection is registration with ANCS. If we don't register while being connected and then the user goes away, when he next time is in range, fresh pairing has to happen. Is that the right understanding? Before we register, we are discovering the ANCS on an iOS device, with UID for ANCS and connection handle as arguments. There are times when discovering API returns 0x06 (implying service not available). At times, we are able to discover the service and are able to register. We wanted to know if there is a deterministic way to ensure ANCS to be discoverable from the peripheral side? If not, is there another way (say any other service) by which the peripheral can take some action to be remembered?