Yes, it does! JFBConnect is fully forward compatible with the upcoming changes, through the current v7.0. We have to be as newly created Facebook Applications always are forced to use the latest Graph API, which means we always need to be able to support the latest for new users that subscribe to JFBConnect.
We always recommend being on the latest release of JFBConnect which we test to make sure it works with the latest Graph API versions while maintaining backward compatibility for features on older Graph API's that some users may still require.
I hope that helps answer your question, but if you need anything else, please let me know.