The Messenger Broadcast API allows businesses to send a message to multiple subscribers that currently have an open conversation with the business’s Facebook Page or send a message to a custom set of people. Messages can be sent with a single API request, and the API can be used to send breaking news, game scores, and other types of alerts to subscribers. The Broadcast API is only available in Graph API v2.11 and above, and the Graph API is required.
The Page Insights API allows a business’s Facebook Page metrics to be retrieved programmatically. The metrics are also available in the Page management console.
The latest version of the Facebook Graph API (v2.11) includes changes to the Pages API and App Links Host. Changes to the Pages API include the ability to get a list of scheduled updates for a page, privately reply to a visitor post, and @mention a user within a post comment or reply. The API also now requires that apps have a valid authentication token for a Page or the User node will not be accessible via the API. Facebook is sunsetting App Links Host, and on 2/6/18 all calls to this endpoint will no longer work.
Versions 2.5, 2.6, and 2.7 of the Facebook Graph API will no longer be supported starting in 2018. The Graph API changelog specifies the specific dates for each of these versions that will no longer be supported.