I’m trying to determine the actual Wi-Fi band (e.g. 2.4GHz, 5GHz, or 6GHz) of the network that is currently connected on macOS. I’m not looking for a heuristic based on the Wi-Fi name (SSID), such as checking whether it contains “5G” or “6G”. Instead, I want a reliable and accurate method that reflects the real connection parameters reported by the system. Specifically, I’m interested in: Whether macOS exposes the current Wi-Fi band or channel information through public APIs (e.g. CoreWLAN) Or if there is any supported system-level way to retrieve this information programmatically If this information is not directly accessible, I’d also like to understand: Why macOS does not expose it And whether there is a recommended alternative approach Any insights or examples would be greatly appreciated.

I would like to share an issue observed during app development. When changing Bluetooth settings from the system Settings app without using multitasking, the app does not terminate but instead logs the user out. However, when changing Bluetooth settings while using multitasking, the app terminates completely. In this context, I would like to understand: Whether there is any system behavior that causes the app to refresh or restart when Bluetooth settings are changed And why the app behavior differs in a multitasking environment, particularly in terms of app lifecycle handling Any insights into these behaviors would be greatly appreciated.

I would like to share an issue observed during app development. When changing Bluetooth settings from the system Settings app without using multitasking, the app does not terminate but instead logs the user out. However, when changing Bluetooth settings while using multitasking, the app terminates completely. In this context, I would like to understand: Whether there is any system behavior that causes the app to refresh or restart when Bluetooth settings are changed And why the app behavior differs in a multitasking environment, particularly in terms of app lifecycle handling Any insights into these behaviors would be greatly appreciated. “while using multitasking” means reducing the app’s size and displaying it side by side with the Settings screen at the same time. For better understanding, I will attach an image. Additionally, I found that YouTube also terminates when the “Allow Tracking” permission is changed in Settings while using the multitasking interface.