https://devzone.nordicsemi.com/f/nordic-q-a/69946/can-i-use-sdk7-2-0-softdevice-instead-of-sdk6-1-0-softdeviceWe have developed an application based on the 6.1.0 SDK to get Bluetooth 5.0 by directly replacing the SoftDeviceen-USTelligent Community 13Tue, 29 Dec 2020 05:59:02 GMThttps://devzone.nordicsemi.com/thread/286784?ContentTypeID=1Tue, 29 Dec 2020 05:59:02 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4e4c4f5d-7c29-4f80-822c-df7ac9bb5dfeHenry_Chou<p>What&#39;s the SD version between 7.2.0 &amp; 6.1.0? If the version is the same , it&#39;s okay. If not, I think that you should modify the application code which is applied SD function. By the way , the SD mapping is also difference.</p><div style="clear:both;"></div>