MP231 Firmware upgrade pathways

Certain Device models need to have a firmware upgrade applied in a specific order. Failure to follow the specific order can result in unintended consequences. Investigation of the issue indicates that it is not an uncommon requirement for firmware updates to be implemented in a specific order.
The information required to ensure each Device has its firmware upgrade applied in the correct order is not included within the Firmware Information Repository (FIR), nor is there a requirement in the SEC for that information to be provided.

The solution will place an obligation on Device Manufacturers to supply the CPL Entry ID(s) of the previous firmware version that can be upgraded to the new version on their CPL submission. This could be one or many versions depending on their firmware. If there is no previous version, then ‘N/A’ should be used to populate the field. This information will then be included in the FIR so that it is accessible for Suppliers, through the SEC website.
This information will be requested on a best endeavours basis for existing entries on the CPL.

Suppliers
DCC
Other SEC Parties (MAPs and Device Manufacturers)

Section A 'Definitions and Interpretation'
Section F ‘Smart Metering System Requirements’
Appendix Z 'CPL Requirements Document'