Core Bluetooth and app background launch

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Created 6d

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TN 3115 states that apps that do not use AccessorySetupKit will loose the ability to launch into the background to service bluetooth in iOS26.

Starting in iOS 26 and iPadOS 26, only apps that use AccessorySetupKit to setup Bluetooth accessories will be relaunched.

Is there any more information regarding this? Will it affect any app under iOS26 or only those build against the iOS26 SDK?

My app (dev build) is still relaunched, even though I'm running iOS26, so I wonder if there are any more conditions checked.

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Answer 1

Engineer OP

Apple

6d

You seem to have misunderstood. That note, Note 5, only pertains to the specific cases where Note 5 is referred to, namely:

if the app Force Quit by the user
Control Center Bluetooth button toggled

An app that was force quit was never able to be relaunched before. iOS 26 actually adds the capability for such apps to be launched if they opt in to use AccessorySetupKit.

So, this is not a case of apps losing the capability to relaunch, but a case of apps gaining the capability to relaunch in cases where they weren't able to before, if they use AccessorySetupKit.

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