What affect is 'Low Latency HLS' Capabilities in App ID Configuration Page?

Hi, I wanna test playing ll-hls in simulator, my devices and other tester's devices.

the key 'com.apple.developer.coremedia.hls.low-latency', introduced at https://developer.apple.com/videos/play/wwdc2019/502, was disabled in XCode. Thus I can't add this key to my entitlement.

But This capabilities table, (https://developer.apple.com/help/account/reference/supported-capabilities-ios/), said ADP only can add 'Low Latency HLS' to App ID Configuration. I've also checked I can add this capability in my ADP memberships and my App page.

  • Is it possible to play ll-hls only for apps that have been checked 'Low Latency HLS' Capability and distributed to AppStore or TestFlights?

If I run directly by xcode to my device, I can't play ll-hls?

I couldn't find any documentations about 'Low Latency HLS' Capability and its affect.