diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1aeaf3da..612bb843 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,13 @@
+### Version 4.28.0 (3rd April 2021)
+#### Changed
+- Removed native iOS legacy code.
+
+#### Native SDKs
+- [iOS@v4.28.0][ios_sdk_v4.28.0]
+- [Android@v4.27.0][android_sdk_v4.27.0]
+
+---
+
 ### Version 4.23.1 (29th September 2020)
 #### Fixed
 - Fixed duplicate `ADJUrlStrategy` symbol error.
@@ -17,8 +27,6 @@
 - Added sending of value of user's consent to be tracked with each package.
 - Added `setUrlStrategy` method to `AdjustConfig2dx` class to allow selection of URL strategy for specific market.
 
-⚠️ **Note**: iOS 14 beta versions prior to 5 appear to have an issue when trying to use iAd framework API like described in [here](https://github.com/adjust/ios_sdk/issues/452). For testing of v4.23.0 version of SDK in iOS, please make sure you're using **iOS 14 beta 5 or later**.
-
 #### Native SDKs
 - [iOS@v4.23.0][ios_sdk_v4.23.0]
 - [Android@v4.24.0][android_sdk_v4.24.0]
diff --git a/VERSION b/VERSION
index 0ef2c601..ad94be36 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.23.1
+4.28.0
diff --git a/dist/AdjustConfig2dx.cpp b/dist/AdjustConfig2dx.cpp
index 4a7554c7..364115f5 100755
--- a/dist/AdjustConfig2dx.cpp
+++ b/dist/AdjustConfig2dx.cpp
@@ -15,7 +15,7 @@
 #include "AdjustConfig2dx.h"
 USING_NS_CC;
 
-const std::string AdjustSdkPrefix2dx = "cocos2d-x4.23.1";
+const std::string AdjustSdkPrefix2dx = "cocos2d-x4.28.0";
 const std::string AdjustUrlStrategyChina = "china";
 const std::string AdjustUrlStrategyIndia = "india";
 
diff --git a/doc/migrate.md b/doc/migrate.md
index 2750e541..8216005c 100644
--- a/doc/migrate.md
+++ b/doc/migrate.md
@@ -1,4 +1,4 @@
-## Migrate your Adjust SDK for Cocos2d-x to 4.23.1 from 4.0.x
+## Migrate your Adjust SDK for Cocos2d-x to 4.28.0 from 4.0.x
 
 ### SDK initialization
 
diff --git a/ext/android/proxy/adjust-android.jar b/ext/android/proxy/adjust-android.jar
index 18171f8a..32e9005d 100644
Binary files a/ext/android/proxy/adjust-android.jar and b/ext/android/proxy/adjust-android.jar differ
diff --git a/ext/android/proxy/adjust-test.jar b/ext/android/proxy/adjust-test.jar
index 4eb0b02d..0fad79c7 100644
Binary files a/ext/android/proxy/adjust-test.jar and b/ext/android/proxy/adjust-test.jar differ
diff --git a/ext/android/sdk b/ext/android/sdk
index 2242fb85..4d69036b 160000
--- a/ext/android/sdk
+++ b/ext/android/sdk
@@ -1 +1 @@
-Subproject commit 2242fb85c80b6376d28d05a663b23dae69e9e7d3
+Subproject commit 4d69036bf44285c03dff4d3ed94ef7839bc17a59
diff --git a/ext/ios/sdk b/ext/ios/sdk
index 950ba354..8790a530 160000
--- a/ext/ios/sdk
+++ b/ext/ios/sdk
@@ -1 +1 @@
-Subproject commit 950ba354221fe329c89c82a8f9a5f04bfc0bf1ac
+Subproject commit 8790a5300d00a11b8f51c7cc66c94165ac656f8c
diff --git a/libs/android/adjust-android.jar b/libs/android/adjust-android.jar
index 18171f8a..32e9005d 100644
Binary files a/libs/android/adjust-android.jar and b/libs/android/adjust-android.jar differ
diff --git a/libs/ios/AdjustSdk.framework/Versions/A/AdjustSdk b/libs/ios/AdjustSdk.framework/Versions/A/AdjustSdk
index d2f59df3..9c94430d 100644
Binary files a/libs/ios/AdjustSdk.framework/Versions/A/AdjustSdk and b/libs/ios/AdjustSdk.framework/Versions/A/AdjustSdk differ
diff --git a/libs/ios/AdjustSdk.framework/Versions/A/Headers/ADJAttribution.h b/libs/ios/AdjustSdk.framework/Versions/A/Headers/ADJAttribution.h
index 2fe89c25..845a909a 100644
--- a/libs/ios/AdjustSdk.framework/Versions/A/Headers/ADJAttribution.h
+++ b/libs/ios/AdjustSdk.framework/Versions/A/Headers/ADJAttribution.h
@@ -53,6 +53,21 @@
  */
 @property (nonatomic, copy, nullable) NSString *adid;
 
+/**
+ * @brief Cost type.
+ */
+@property (nonatomic, copy, nullable) NSString *costType;
+
+/**
+ * @brief Cost amount.
+ */
+@property (nonatomic, copy, nullable) NSNumber *costAmount;
+
+/**
+ * @brief Cost currency.
+ */
+@property (nonatomic, copy, nullable) NSString *costCurrency;
+
 /**
  * @brief Make attribution object.
  * 
diff --git a/libs/ios/AdjustSdk.framework/Versions/A/Headers/ADJConfig.h b/libs/ios/AdjustSdk.framework/Versions/A/Headers/ADJConfig.h
index 4e8458ad..b062cf98 100644
--- a/libs/ios/AdjustSdk.framework/Versions/A/Headers/ADJConfig.h
+++ b/libs/ios/AdjustSdk.framework/Versions/A/Headers/ADJConfig.h
@@ -148,6 +148,11 @@
  */
 @property (nonatomic, assign) BOOL allowiAdInfoReading;
 
+/**
+ * @brief Enables/disables reading of AdServices framework data needed for attribution.
+ */
+@property (nonatomic, assign) BOOL allowAdServicesInfoReading;
+
 /**
  * @brief Enables/disables reading of IDFA parameter.
  */
@@ -168,6 +173,11 @@
  */
 @property (nonatomic, assign) BOOL isDeviceKnown;
 
+/**
+ * @brief Set if cost data is needed in attribution response.
+ */
+@property (nonatomic, assign) BOOL needsCost;
+
 /**
  * @brief Adjust app secret id.
  */
diff --git a/libs/ios/AdjustSdk.framework/Versions/A/Headers/ADJThirdPartySharing.h b/libs/ios/AdjustSdk.framework/Versions/A/Headers/ADJThirdPartySharing.h
new file mode 100644
index 00000000..610ca80b
--- /dev/null
+++ b/libs/ios/AdjustSdk.framework/Versions/A/Headers/ADJThirdPartySharing.h
@@ -0,0 +1,23 @@
+//
+//  ADJThirdPartySharing.h
+//  AdjustSdk
+//
+//  Created by Pedro S. on 02.12.20.
+//  Copyright © 2020 adjust GmbH. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+@interface ADJThirdPartySharing : NSObject
+
+- (nullable id)initWithIsEnabledNumberBool:(nullable NSNumber *)isEnabledNumberBool;
+
+- (void)addGranularOption:(nonnull NSString *)partnerName
+                      key:(nonnull NSString *)key
+                    value:(nonnull NSString *)value;
+
+@property (nonatomic, nullable, readonly, strong) NSNumber *enabled;
+@property (nonatomic, nonnull, readonly, strong) NSMutableDictionary *granularOptions;
+
+@end
+
diff --git a/libs/ios/AdjustSdk.framework/Versions/A/Headers/Adjust.h b/libs/ios/AdjustSdk.framework/Versions/A/Headers/Adjust.h
index 2d7605e3..efe4dee1 100644
--- a/libs/ios/AdjustSdk.framework/Versions/A/Headers/Adjust.h
+++ b/libs/ios/AdjustSdk.framework/Versions/A/Headers/Adjust.h
@@ -2,7 +2,7 @@
 //  Adjust.h
 //  Adjust
 //
-//  V4.23.2
+//  V4.28.0
 //  Created by Christian Wellenbrock (wellle) on 23rd July 2013.
 //  Copyright © 2012-2017 Adjust GmbH. All rights reserved.
 //
@@ -11,6 +11,7 @@
 #import "ADJConfig.h"
 #import "ADJAttribution.h"
 #import "ADJSubscription.h"
+#import "ADJThirdPartySharing.h"
 
 @interface AdjustTestOptions : NSObject
 
@@ -26,6 +27,7 @@
 @property (nonatomic, assign) BOOL deleteState;
 @property (nonatomic, assign) BOOL noBackoffWait;
 @property (nonatomic, assign) BOOL iAdFrameworkEnabled;
+@property (nonatomic, assign) BOOL adServicesFrameworkEnabled;
 @property (nonatomic, assign) BOOL enableSigning;
 @property (nonatomic, assign) BOOL disableSigning;
 
@@ -43,6 +45,7 @@ extern NSString * __nonnull const ADJEnvironmentProduction;
 extern NSString * __nonnull const ADJAdRevenueSourceMopub;
 extern NSString * __nonnull const ADJAdRevenueSourceAdmob;
 extern NSString * __nonnull const ADJAdRevenueSourceFbNativeAd;
+extern NSString * __nonnull const ADJAdRevenueSourceFbAudienceNetwork;
 extern NSString * __nonnull const ADJAdRevenueSourceIronsource;
 extern NSString * __nonnull const ADJAdRevenueSourceFyber;
 extern NSString * __nonnull const ADJAdRevenueSourceAerserv;
@@ -64,6 +67,7 @@ extern NSString * __nonnull const ADJAdRevenueSourceTapdaq;
  */
 extern NSString * __nonnull const ADJUrlStrategyIndia;
 extern NSString * __nonnull const ADJUrlStrategyChina;
+extern NSString * __nonnull const ADJDataResidencyEU;
 
 /**
  * @brief The main interface to Adjust.
@@ -273,6 +277,10 @@ extern NSString * __nonnull const ADJUrlStrategyChina;
  */
 + (void)disableThirdPartySharing;
 
++ (void)trackThirdPartySharing:(nonnull ADJThirdPartySharing *)thirdPartySharing;
+
++ (void)trackMeasurementConsent:(BOOL)enabled;
+
 /**
  * @brief Track subscription.
  *
@@ -282,6 +290,10 @@ extern NSString * __nonnull const ADJUrlStrategyChina;
 
 + (void)requestTrackingAuthorizationWithCompletionHandler:(void (^_Nullable)(NSUInteger status))completion;
 
++ (int)appTrackingAuthorizationStatus;
+
++ (void)updateConversionValue:(NSInteger)conversionValue;
+
 /**
  * Obtain singleton Adjust object.
  */
@@ -343,4 +355,8 @@ extern NSString * __nonnull const ADJUrlStrategyChina;
 
 - (void)requestTrackingAuthorizationWithCompletionHandler:(void (^_Nullable)(NSUInteger status))completion;
 
+- (int)appTrackingAuthorizationStatus;
+
+- (void)updateConversionValue:(NSInteger)conversionValue;
+
 @end
diff --git a/src/AdjustConfig2dx.cpp b/src/AdjustConfig2dx.cpp
index 4a7554c7..364115f5 100755
--- a/src/AdjustConfig2dx.cpp
+++ b/src/AdjustConfig2dx.cpp
@@ -15,7 +15,7 @@
 #include "AdjustConfig2dx.h"
 USING_NS_CC;
 
-const std::string AdjustSdkPrefix2dx = "cocos2d-x4.23.1";
+const std::string AdjustSdkPrefix2dx = "cocos2d-x4.28.0";
 const std::string AdjustUrlStrategyChina = "china";
 const std::string AdjustUrlStrategyIndia = "india";
 
diff --git a/test/libs/android/adjust-test.jar b/test/libs/android/adjust-test.jar
index 4eb0b02d..0fad79c7 100644
Binary files a/test/libs/android/adjust-test.jar and b/test/libs/android/adjust-test.jar differ
diff --git a/test/libs/ios/AdjustTestLibrary.framework/Versions/A/AdjustTestLibrary b/test/libs/ios/AdjustTestLibrary.framework/Versions/A/AdjustTestLibrary
index 359848bf..c58e0eb1 100644
Binary files a/test/libs/ios/AdjustTestLibrary.framework/Versions/A/AdjustTestLibrary and b/test/libs/ios/AdjustTestLibrary.framework/Versions/A/AdjustTestLibrary differ
diff --git a/test/libs/ios/AdjustTestLibrary.framework/Versions/A/Headers/ATLControlChannel.h b/test/libs/ios/AdjustTestLibrary.framework/Versions/A/Headers/ATLControlChannel.h
deleted file mode 100644
index 377f35aa..00000000
--- a/test/libs/ios/AdjustTestLibrary.framework/Versions/A/Headers/ATLControlChannel.h
+++ /dev/null
@@ -1,18 +0,0 @@
-//
-//  ATLControlChannel.h
-//  AdjustTestLibrary
-//
-//  Created by Pedro on 23.08.17.
-//  Copyright © 2017 adjust. All rights reserved.
-//
-
-#import <Foundation/Foundation.h>
-#import "ATLTestLibrary.h"
-
-@interface ATLControlChannel : NSObject
-
-- (id)initWithTestLibrary:(ATLTestLibrary *)testLibrary;
-
-- (void)teardown;
-
-@end