Updated for 5.6.1
MODIFY
adapters/Facebook/CHANGELOG.md
adapters/Facebook/CHANGELOG.md
## Facebook iOS Mediation Adapter Changelog
+#### Version 5.6.1.0
+- Verified compatibility with FAN SDK 5.6.1.
+
#### Version 5.6.0.0
- Verified compatibility with FAN SDK 5.6.0.

MODIFY
adapters/Facebook/FacebookAdapter/GADMAdapterFacebookConstants.h
adapters/Facebook/FacebookAdapter/GADMAdapterFacebookConstants.h
// limitations under the License.
/// Facebook mediation network adapter version.
-static NSString *const kGADMAdapterFacebookVersion = @"5.6.0.0";
+static NSString *const kGADMAdapterFacebookVersion = @"5.6.1.0";
static NSString *const kGADMAdapterFacebookOpenBiddingPubID = @"placement_id";

Updated for 5.6.1