Besides delivering new features, these updated versions of Android also bring security patches and bug fixes that can solve major problems in performance, call quality, and even .

Since Android updates vary depending on mobile service carrier and phone model, we've put together a chart to help you keep track of which phones will (or won't) be updated to the next major version of Android. To check for your phone's status on the chart, see "."

The list focuses on phones now available and phones confirmed to be moving up to the next major version of the OS (currently, Android 4.0, code-named ). Android 4.0 is a huge step forward for the Android OS, and the update significantly changes how Android looks and feels. It includes updated versions of all of the core apps, such as Gmail and Maps, and the OS looks much slicker as well.

We'll update the chart regularly, so we invite you to check in periodically to see whether your phone will be getting a taste of Ice Cream Sandwich or any of the future dessert-nicknamed updates such as .

That accounts for the specific information in the chart--but what does the overall data tell us about how successful different carriers and phone manufacturers are at updating their phones with newer versions of Android?