Updates to the G59 standard require confirmation that ROCOF and VS are not used as a means of protection.
If they are they need disabling. Or may need the settings amending.
(useful brief overview from Comap - https://www.comap-control.co.uk/g59-3-4-accelerated-loss-of-mains-change-programme/)
The ENA has a database collating the responses from Manufacturers - and what course of action may or may not be required.
Do any Victron devices use ROCOF or VS loss of mains ?
Thanks
Chris