I've found the following link which has the API differences b/t CQ5.5 & 5.6
The above has list of APIs which are removed, added & changed. But my concern is, we have developed few workflows in CQ 5.5 and now we are migrating to CQ 5.6.
Document says,  has been replaced with  in 5.6. But still  works in 5.6. If I go for update  with : getSession() method is removed in 5.6 version.. which I've used in several places in the CQ5.5 workflow process.
How can I get JCR Session in the workflow + CQ5.6.. I need to check how we can get jcr session in 5.6.
In this case Participant chooser will not work, If I don't update  with  in 5.6.
So what's the best approach to migrate?
Document request has been placed.