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Google announced Android App Bundle (AAB) publishing for Android apps. It improves Android app packaging and distribution via the Google Play Store. The AAB format optimizes software distribution by lowering file sizes, improving delivery, and improving user experience.

Important Android App Bundles (AAB) information:

Dynamic Delivery: AAB lets developers leverage Google's Dynamic Delivery to customize app experiences. AAB modules the software and provides just the required components to the user's device instead of giving a single APK file for all device configurations. Downloads are lower and installations are quicker.

AAB enables adaptable icons, letting developers to change app icon forms and visual effects depending on launcher settings. This ensures a uniform look across devices and launchers.

A single AAB may include numerous APKs suited for various device setups (CPU architecture, screen density, language, etc.). User device characteristics determine which APK Google Play Store develops and delivers, ensuring they get the best app version.

Asset Packaging: AAB lets developers package language resources, screen sizes, and other materials to improve asset delivery. So, just the resources needed are supplied, decreasing app size and device storage.

The Google Play Store accepts AAB files instead of APKs from developers. Google Play's Dynamic Delivery system generates and serves optimized APKs depending on device parameters using these AAB files.

For better app delivery, less app size, and better user experiences, AAB optimizes and tailors app installs. Google's goal is to simplify Android app deployment.