A free workspace has 10 members, and an additonal 14 single board guests.

[Peter Szekeres]

Will this workspace remain free? If not why?

[Caity · Accepted solution]

That Workspace would be over the 10 collaborator limit, because both members and all guests are counted as collaborators. However, if you upgrade the Workspace, you would only be billed for members and guests who are on multiple boards—the single-board guests would be free.

[Peter Szekeres]

Thanks!

If I update the workspace would I have to pay for all 10 members + multi board guest, or just for the over 10 limit multi board guests or collaborators?

[Rasmus Wulff Jensen]

You will need to pay for all members and multi-board guest (In a paid plan all except the single-board-guests need to be paid for) :-/

[Rasmus Wulff Jensen · Accepted solution]

I've made this 10 min video on how the new rules work via various examples: https://youtu.be/rqmCHU_QxY8 (Your scenario is similar to Example 3: https://www.youtube.com/watch?v=rqmCHU_QxY8&t=387s)