Android can be confusing. There are a lot of different versions, and many of them are still running on devices today. Keeping up with the latest version can be a challenge.
Major Android versions are generally released once per year (though it wasn’t always like this), with monthly security updates released in between. Occasionally, Google also releases point updates (.1, .2, etc.), though those generally come without regularity. Oftentimes, more significant updates that aren’t quite as significant as full version releases warrant a point update—like the update from Android 8.0 to Android 8.1, for example.
Alongside every version of Android is a code name, which many people use instead of the version number. Each one is named after a dessert or some other form of confection, which is more for fun than anything else.
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