We’re talking about full-screen pages with the words “Update available” and “Download the latest version to use this app.” At the bottom of the page you will find the name and details of the app under the “What’s new in the update” line. There are two buttons for users: “More details” and “Update”.
This is a new Android tool that makes it easier for developers to maintain the latest versions of their products and for users to ensure compatibility with current versions of their devices and operating system builds.
Source: Ferra

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