I'm an SDK maker which has bundled the Facebook iOS SDK (version 3.6 from July 24, 2013). I'd like to understand Facebook's SDK deprecation policy so that I have advanced notice and can update my product accordingly. Where can I find/subscribe to this information?
All the details of the new V2.0 API can be found in the Changelog and Upgrade guides:
https://developers.facebook.com/docs/apps/changelog https://developers.facebook.com/docs/ios/upgrading/
The version of the API as it was before last April 30 will be available until April 30 2015.
The new V2.0 will be available for at least two more years. To be precise: from the moment when a new version of the API is introduced, the current (thus V2.0) will be supported for two more years.
Within the same version there will be no breaking changes to core functionalities.
In the Changelog you can read a lot about the new permissions, and which are removed. Basically, all friends_* permissions are removed. Furthermore, your app needs to be reviewed when it uses other permissions than public_profile, email and user_friends (which now returns only the list of friends that also use your app).
You can read more on the reviewing process here: https://developers.facebook.com/docs/apps/review