Short answer, this should be automatically taken care of since you're using the latest JFBConnect version.
Alex wrote a
blog post
awhile ago for API v2.0 deprecated. In it he laid out a quick timeline of the API deprecations and the corresponding versions of JFBConnect that you should be using. The section for this timeline is titled "What do I need to do?"
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 staying up-to-date when that comes out.
-Melissa