- nRF54H Series: The SecDom FW variant is no longer automatically detected. It is now assumed that the device is running the IronSide Secure Enclave (SE). The SUIT SecDom FW can only be used if it is explicitly selected, by using for example the environment variable
NRFUTIL_DEVICE_SDFW_VARIANTor the option--x-sdfw-variant.