Facebook launched Requests 2.0 for developers. The update classifies requests into two types : user-generated and app-generated.The new update to Requests will simplify the bookmark management process and alert users on outstanding requests.
The user-generated requests update the bookmark count and are to be confirmed explicitly by a user.However, the app-generated requests can be initiated and sent to users who have authorized the particular app. While the user-generated requests are send by the developer using the Request Dialog, the later can have requests using Graph API.
Together, Facebook has stopped manually managing the bookmark count; which would mean that a developer needs to worry only about sending requests to update users on the outstanding items in their app.Automatic sync of the count is done to make the process handy. However, developers will still have to process the requests. To prevent accumulation of bookmark counts, requests will auto-expire after two weeks.To add-on, all new Facebook apps will use Requests 2.0.