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- Remove support for Python 2.6.
- Add support for Graph API versions 2.8, 2.9, and 2.10.
- Remove support for Graph API versions 2.1, 2.2, and 2.3.
- Change default Graph API version to 2.4.
- Add support for requests' sessions (201).
- Add versioning to access token endpoints (322).
- Add new `get_all_connections` method to make pagination easier (337).
- Add new `get_permissions` method to retrieve permissions that a user has
granted an application (264, 342).
- Remove `put_wall_post` method. Use `put_object` instead.
- Add search method (362).