Android Development

Android development

4.0 release review — September 10, 2026. The documented published candidate is 4.0.0-RC.2. Final 4.0.0 is not yet published. See QQQ 4.0 for scope and acceptance gates.

The Android client is an experimental, separate development scope. QQQ 4.0 does not certify an Android package version, Kotlin client API, or compatibility range. The previous io.qrun:qqq-android:0.1.0 installation example and client snippets were not verified release instructions.

Use the Android repository to inspect the actual implementation and release status. Any mobile client must implement the selected application's real HTTP contract, authentication, error handling, and offline behavior. Verify the backend version and client behavior together before distributing an app.

Public API Overview · Compatibility Matrix