Navionics Card Update Question

Updating my Navionics Platinum Plus card before my 1 year membership expires.
Do you guys update both nautical and sonar or only nautical?
It's only showing a Navionics Plus update, doesn't mention Platinum plus update, is this because I already have all the platinum info on my card so it's just adding the newest mapping info to my card?

I always updated everything on mine except the community stuff which was usually fake news.

Correct. It will only update the mapping. Nautical is if you want salt water areas updated too. Might as well update it all

Thanks, I updated all, except the community stuff.