Updated for FAN 5.9
MODIFY
adapters/Facebook/CHANGELOG.md
adapters/Facebook/CHANGELOG.md
## Facebook iOS Mediation Adapter Changelog
+#### Version 5.9.0.0
+- Verified compatibility with FAN SDK 5.9.0.
+
+Built and tested with
+- Google Mobile Ads SDK version 7.58.0.
+- FAN SDK version 5.9.0.
+
#### Version 5.8.0.2
- Adapter now calls adapterWillPresentScreen: immediately followed by adapterDidDismissScreen: if interstitial ads fail to present.
- Fixed a bug where some banner requests failed with reason "Display format doesn't match".

MODIFY
adapters/Facebook/FacebookAdapter/GADMAdapterFacebookConstants.h
adapters/Facebook/FacebookAdapter/GADMAdapterFacebookConstants.h
// limitations under the License.
/// Facebook mediation network adapter version.
-static NSString *const kGADMAdapterFacebookVersion = @"5.8.0.2";
+static NSString *const kGADMAdapterFacebookVersion = @"5.9.0.1";
static NSString *const kGADMAdapterFacebookOpenBiddingPubID = @"placement_id";

Updated for FAN 5.9