The folks at AndroidPolice are on a roll today, as they just discovered, after examining the new Google Play Store APK, that the revamped Android marketplace now takes advantage of “smart updates.”

The 300 KB APK code previously revealed a wishlist and gift cards coming down the pipeline, and now it shows incremental downloads are live in version 3.8.15 of the Play Store. Those who need to keep an eye on their data consumption will revel in the update, because it means they no longer have to re-download an entire APK to get the latest version. Hereafter—Android devices will only download the changes between versions.

That is not all, according to AndroidPolice:

Here’s the good news: it should also work with earlier Play Store releases, like 3.7.15, as the change seems to be retroactive and server-side.

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