https://devzone.nordicsemi.com/f/nordic-q-a/64959/nrf-connect-sdk-bluetooth-production-statusI&#39;m evaluating if it is possible to build my Bluetooth application using the nRF Connect SDK (v1.3.0) instead of the nRF5 SDK and not be worried about any certification issues. I&#39;ve seen comments scattered throughout the forums and the SDK itself abouten-USTelligent Community 13Wed, 19 Aug 2020 11:53:19 GMThttps://devzone.nordicsemi.com/thread/265298?ContentTypeID=1Wed, 19 Aug 2020 11:53:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a0e5a85c-7f8e-419f-afde-e6941f145ec5run_ar<p>Hi,</p> <p>You can choose if you want to use nRF5 SDK or nRF connect. From nRF connect documentation <em>&quot;The nRF Connect SDK Bluetooth stack is fully supported by Nordic Semiconductor for nRF52 Series devices&quot;</em></p> <p>When it comes to Certification, we have a customer that has already qualified the zephyr host as a subsystem (<a href="https://launchstudio.bluetooth.com/ListingDetails/109287">https://launchstudio.bluetooth.com/ListingDetails/109287</a>). This can be used as reference when for the host layer when listing your device.</p> <p>As for Link Layer we are currently in the process of qualifying this. The last estimate I heard was that this should be complete by the end of this month.</p><div style="clear:both;"></div>