diff --git a/platform/darwin/src/MGLVectorTileSource.mm b/platform/darwin/src/MGLVectorTileSource.mm
index 88ddee1d9..a3241d3bc 100644
--- a/platform/darwin/src/MGLVectorTileSource.mm
+++ b/platform/darwin/src/MGLVectorTileSource.mm
@@ -82,7 +82,8 @@
  https://www.mapbox.com/vector-tiles/mapbox-streets-v7/#overview
  */
 static NSArray * const MGLMapboxStreetsLanguages = @[
-    @"ar", @"de", @"en", @"es", @"fr", @"pt", @"ru", @"zh", @"zh-Hans",
+    @"ar", @"de", @"en", @"es", @"fr", @"ja", @"ko", @"pt", @"ru", @"zh",
+    @"zh-Hans",
 ];
 
 /**
@@ -90,7 +91,8 @@ static NSArray * const MGLMapboxStreetsLanguages = @[
  `+[NSBundle preferredLocalizationsFromArray:forPreferences:]`.
  */
 static NSArray * const MGLMapboxStreetsAlternativeLanguages = @[
-    @"mul", @"ar", @"de", @"es", @"fr", @"pt", @"ru", @"zh", @"zh-Hans",
+    @"mul", @"ar", @"de", @"es", @"fr", @"ja", @"ko", @"pt", @"ru", @"zh",
+    @"zh-Hans",
 ];
 
 + (NSSet<NSString *> *)mapboxStreetsLanguages {
diff --git a/platform/ios/CHANGELOG.md b/platform/ios/CHANGELOG.md
index 9b377913d..4d052e026 100644
--- a/platform/ios/CHANGELOG.md
+++ b/platform/ios/CHANGELOG.md
@@ -5,6 +5,7 @@ Mapbox welcomes participation and contributions from everyone. Please read [CONT
 # master
 
 * Added `-[MGLMapView camera:fittingShape:edgePadding:]` and `-[MGLMapView camera:fittingCoordinateBounds:edgePadding:]` allowing you specify the pitch and direction for the calculated camera. ([#12213](https://github.com/mapbox/mapbox-gl-native/pull/12213))
+* `-[MGLStyle localizeLabelsIntoLocale:]` and `-[NSExpression mgl_expressionLocalizedIntoLocale:]` can automatically localize labels into Japanese or Korean based on the system’s language settings. ([#12286](https://github.com/mapbox/mapbox-gl-native/pull/12286))
 
 ## 4.2.0
 
diff --git a/platform/macos/CHANGELOG.md b/platform/macos/CHANGELOG.md
index 4a4355290..e12ac427d 100644
--- a/platform/macos/CHANGELOG.md
+++ b/platform/macos/CHANGELOG.md
@@ -3,6 +3,7 @@
 # master
 
 * Added `-[MGLMapView camera:fittingShape:edgePadding:]` and `-[MGLMapView camera:fittingCoordinateBounds:edgePadding:]` allowing you specify the pitch and direction for the calculated camera. ([#12213](https://github.com/mapbox/mapbox-gl-native/pull/12213))
+* `-[MGLStyle localizeLabelsIntoLocale:]` and `-[NSExpression mgl_expressionLocalizedIntoLocale:]` can automatically localize labels into Japanese or Korean based on the system’s language settings. ([#12286](https://github.com/mapbox/mapbox-gl-native/pull/12286))
 
 ## 0.7.2 - June 22, 2018