Release Note of nRF52840https://devzone.nordicsemi.com/f/nordic-q-a/22307/release-note-of-nrf52840I asked what changed SDK11&#39;s &quot;app_trace&quot; to the SDK13. You answered that the &quot;app_trace&quot; was changed in SDK12. I found &#39;release note&#39;, but I could not find the above. I want to know how to find the above content. because, I need other changeden-USTelligent Community 13Fri, 26 May 2017 09:00:31 GMTRE: Release Note of nRF52840https://devzone.nordicsemi.com/thread/87718?ContentTypeID=1Fri, 26 May 2017 09:00:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5215c0ee-278c-4cd8-82e9-e3c7779ec031Hung Bui<p>Hi,</p> <p>App_trace is deprecated from SDK v12. We replaced app_trace with <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v13.0.0/nrf_log.html?cp=4_0_0_3_20">nrf_log</a> module. I would suggest you to switch to nrf_log.</p><div style="clear:both;"></div>