SDK 17.0.2 to 17.1.0 migration ble_nus ctrl data

Hello,

I'm migrating my project from sdk 17.0.2 to sdk 17.1.0. In the project I use BLE NUS, and it's control data. In SDK 17.1.0 there are no functions for sending ctrl data and events to receive it. Any tips for how to manage the ctrl data?

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