Android 4.4 has been rolling out to some Sony Xperia devices, and even some older ones are just getting updated to Android 4.3. If keeping track of which update has arrived for which device has your head spinning, then this new online tool might just help to keep you from going insane.
Keeping track of Android updates is no easy job. Keeping track of manufacturer-specific firmware updates is even more so. While the former is more often than not reported on Android sites like this, the latter, especially minor updates, are usually given a pass. But for Xperia users who are interested or just even curious about the latest firmware available for their device, or someone else's, this website from XDA member pascalbrax can help you find out that information.
The site won't win any design awards, but it tries to get the job done, somewhat. Users can enter pick their device from a long list of Xperia devices, including regional variants, and optionally enter their Customization number. This will then return the version of the latest firmware available for your device. It even offers a link to the exact model for you to bookmark as well as an image that gets automatically updated with the correct build number, which you can then use in sites like forums or blogs.
This firmware check site is still quite rough around the edges, though hopefully it will improve as time goes by. For one, users won't be able to download the exact firmware that they want. For that, they could use a Windows-only tool to check for firmware updates and download them too. But more importantly, it only gives out the firmware version, which is useful for only checking if you're device is behind on updates. To find out other details about the firmware, even something as basic as Android version, users will have to cross-reference it with other sources of information. Not exactly the most convenient process, but it's definitely a start.