Recent Facebook Developer Alert for Graph API 2.4

Yes, JFBConnect supports v2.4. There should be nothing additional that you need to do to work properly. Check out Alex's old blog post regarding Graph API deprecations.

-Melissa

Also, I do want to point out that there is a bug fix in the upcoming JFBConnect release (due out this week or early next) that corrects a small bug with token access found with using version 2.3 and later. So I'd recommend updating your version when it comes out actually.