https://devzone.nordicsemi.com/f/nordic-q-a/101393/dfu-with-nrf-connect-2-4Hi Team, I followed the DFU tutorial from https://devzone.nordicsemi.com/guides/nrf-connect-sdk-guides/b/software/posts/ncs-dfu#other_dfu_samples using ncs 2.3 and it works fine. When I switch over to ncs 2.4, I got errors for missing symbols: warningen-USTelligent Community 13Mon, 03 Jul 2023 08:55:17 GMThttps://devzone.nordicsemi.com/thread/434120?ContentTypeID=1Mon, 03 Jul 2023 08:55:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7eefbf86-d63a-4325-b7a1-e427dc11cdbdSigurd<p>Hi,</p> <p>Yes, MCUmgr Kconfig option names have been standardised in this release.&nbsp;<a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/releases/release-notes-3.3.html#libraries-subsystems">https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/releases/release-notes-3.3.html#libraries-subsystems</a></p> <p><img style="max-height:240px;max-width:320px;" src="https://devzone.nordicsemi.com/resized-image/__size/640x480/__key/communityserver-discussions-components-files/4/4010.pastedimage1688374419093v1.png" alt=" " /></p> <p><span>MCUMGR_CMD_IMG_MGMT -&gt;&nbsp;MCUMGR_GRP_IMG</span></p> <p><span>MCUMGR_CMD_OS_MGMT -&gt;&nbsp;MCUMGR_GRP_OS</span></p> <p><span>MCUMGR_SMP_BT -&gt;&nbsp;MCUMGR_TRANSPORT_BT</span></p> <p><span>MCUMGR_SMP_BT_AUTHEN -&gt;&nbsp;MCUMGR_TRANSPORT_BT_AUTHEN</span></p> <p><span></span></p> <p><span>See also this sample&nbsp;<a href="https://github.com/nrfconnect/sdk-zephyr/tree/v3.3.99-ncs1/samples/subsys/mgmt/mcumgr/smp_svr">https://github.com/nrfconnect/sdk-zephyr/tree/v3.3.99-ncs1/samples/subsys/mgmt/mcumgr/smp_svr</a></span></p> <p><span></span></p> <p><span></span></p><div style="clear:both;"></div>