MCUBOOT Update Network Core nrf5340

Hi,

I have MCUboot enabled on my application and would like to enable updating the network core as well as the app core through BLE. The network core is just used for BLE support, there is no custom code. The app core is where the main program runs. I have the SMP enabled and it is working, I can download the generated dfu_application.zip to the processor. I am however unsure if this is updating the network core as well as the application core by default. My current config file just includes the following for OTA updates:

CONFIG_NCS_SAMPLE_MCUMGR_BT_OTA_DFU=y
CONFIG_BOOTLOADER_MCUBOOT=y

I am following the Simultaneous multi-image DFU documentation and it seems to be a bit out of date (some of the config options do not exist anymore). Can you confirm:

  1. Is the network core updated by default when MCUboot is enabled?
  2. What configuration do I need to change to get the Network core to be able to update?
  3. Do you have a sample project or example where the network core and app core are updated via BLE?
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