[ios] Prepare changelog for ios-v3.7.6

platform/ios/CHANGELOG.md

@@ -53,8 +53,11 @@ Mapbox welcomes participation and contributions from everyone. Please read [CONT
 * Added `MGLMapView.showsScale` as the recommended way to show the scale bar. This property can be set directly in Interface Builder. ([#11335](https://github.com/mapbox/mapbox-gl-native/pull/11335))
 * Fixed an issue where the scale bar would not appear until the map had moved. ([#11335](https://github.com/mapbox/mapbox-gl-native/pull/11335))
 
-## 3.7.6
+## 3.7.6 - March 12, 2018
 
+* Fixed an issue where full-resolution tiles could fail to replace lower-resolution placeholders. ([#11227](https://github.com/mapbox/mapbox-gl-native/pull/11227))
+* Fixed an issue where tilesets with bounds that cover the entire world would fail to render. ([#11425](https://github.com/mapbox/mapbox-gl-native/pull/11425))
+* Fixed a memory leak in `MGLMapSnapshotter`. ([#11193](https://github.com/mapbox/mapbox-gl-native/pull/11193))
 * Fixed an issue where the pinch gesture could drift beyond bounds imposed by `-[MGLMapViewDelegate mapView:shouldChangeFromCamera:toCamera:]`. ([#11423](https://github.com/mapbox/mapbox-gl-native/pull/11423))
 * Improved the visibility of the heading indicator arrow. ([#11337](https://github.com/mapbox/mapbox-gl-native/pull/11337))