CHANGELOG.md update

Author: uerceg

CHANGELOG.md

@@ -1,3 +1,14 @@
+### Version 4.22.1 (5th June 2020)
+#### Fixed
+- Fixed `copyWithZone:` method implementation in `ADJSubscription.m` (native iOS SDK update).
+
+#### Native SDKs
+- [[email protected]][ios_sdk_v4.22.1]
+- [[email protected]][android_sdk_v4.22.0]
+- [[email protected]][windows_sdk_v4.17.0]
+
+---
+
 ### Version 4.22.0 (5th June 2020)
 #### Added
 - Added subscription tracking feature.
@@ -733,6 +744,7 @@
 [ios_sdk_v4.21.1]: https://github.com/adjust/ios_sdk/tree/v4.21.1
 [ios_sdk_v4.21.2]: https://github.com/adjust/ios_sdk/tree/v4.21.2
 [ios_sdk_v4.22.0]: https://github.com/adjust/ios_sdk/tree/v4.22.0
+[ios_sdk_v4.22.1]: https://github.com/adjust/ios_sdk/tree/v4.22.1
 
 [android_sdk_v3.5.0]: https://github.com/adjust/android_sdk/tree/v3.5.0
 [android_sdk_v4.1.0]: https://github.com/adjust/android_sdk/tree/v4.1.0