Microsoft today released the first update to Windows Phone 8.1 Preview for Developers. If you're a developer or enthusiast in the program, you can get the new veriso (build number 8.10.12382.878) by going to Settings on your device, then Phone Update, and tapping "check for updates." Unfortunately, Microsoft wouldn't share what exactly is new in this release. The company merely says the update includes "several improvements based on the feedback we've received" and that it is "happy to be rolling it out after just one month." We have contacted Microsoft to learn exactly what's new.