---
title: Android SDK changelog
product: Unity Ads Android Monetization
version: 4.22.0
latest_version: 4.22.0
status: This page documents version 4.22.0. The latest version is 4.22.0.
canonical: https://docs.unity.com/en-us/ads-android/4.22.0/getting-started/changelog
latest_url: https://docs.unity.com/en-us/ads-android/4.22.0/getting-started/changelog.md
last_updated: 2026-11-13
generated_at: 2026-11-14T06:52:56.448Z
locale: en-us
---

# Android SDK changelog

> Track versioned releases and updates for the Unity Ads Android SDK.

## Version 4.22.0 - released 2026-11-13

* Decreased the SDK size by 41% with R8 minification enabled (supporting the [Google Play DEX code optimization requirement](https://support.google.com/googleplay/android-developer/answer/17492799?hl=en#zippy=%2Cdex-code-optimization)).
* Added an option to pass a `Context` in `InitializationConfiguration`.
* Fixed an issue where some signals were collected on the main thread instead of a background thread.

## Version 4.21.0 - released 2026-10-01

* Improved SDK initialization, ad loading, and bidding token performance.
* Fixed bugs and added stability improvements.

## Version 4.20.1 - released 2026-09-14

* SDK size optimization.

## Version 4.20.0 - released 2026-08-14

* Improved ad load reliability and overall performance.
* Fixed a crash on Android 8 and reduced Application Not Responding errors (ANRs).
* Added support for Android Gradle Plugin 9 with R8 minification.

> **Note:**
>
> If you’re upgrading or plan to upgrade to Android Gradle Plugin 9 / AGP 9 with `isMinifyEnabled = true`, install the Unity Ads SDK 4.20.0.
>
> If you’re using a Unity Ads SDK version earlier than 4.20.0 with Android Gradle Plugin 9 with `isMinifyEnabled = true`, you must [add the required keep rules to your own ProGuard configuration](/ads-android/4.22.0/sdk-integration/requirements.md#android-gradle-plugin-versions), otherwise Unity's diagnostic and operative events are silently dropped under R8.

## Version 4.19.0 - released 2026-06-23

* Upgraded Kotlin to 2.1.x.
* Fixed bugs and added stability improvements.

> **Important:**
>
> Direct integration publishers: Refer to the latest Android API reference for [Java and Kotlin](/ads-android/4.22.0/sdk-integration/api/android-api.md) for APIs deprecated since Unity Ads SDK 4.19.0.