We are currently using ncs 2.9.0 on an nRF5340. We use the BT_HCI_OP_VS_READ_VERSION_INFO to determine at runtime what version of the BLE stack is present. This information seems to only contain the git hash for the source. It does not seem to have anything about what configuration parameters were used to build the BLE stack. In our case we want to know what configuration the BLE stack was build with (config parameter), so that our application can act appropriately. Ideally, there would be a config parameter for the network firmware where we can additional specify our own version number field. I wasn't able to find anything like that. Does something like that exist?
