Hi Mark,
I'm glad to hear that you are updating the wf_status table with a primary field. This is not about whether the field is needed to make the WordFence plugin function in isolation. Adding the Primary field simply allows it to play nice with other installed plugins. I'm happy to run a SQL command but this is too advanced for those users who simply want things to run without any problems. Adding the Primary field in wf_status removes a barrier that would put potential customers off from using the free and then hopefully the paid versions.
Thank you for the rapid response and coming up with the obvious solution. Any idea about the timeframe for the next update?
Kind regards,
Nigel