Microsoft pushes a small update to Windows Phone 8.1 Preview for Devs
Today, Microsoft pushed an update to its Windows Phone 8.1 Preview, and advises all those who already installed the new OS to “to stay current on the latest build” - which, by the way, is now build number 12397. This is the third update that WP 8.1 Preview is getting since the beginning of May. The previous ones brought small enhancements, including improved battery life. The new update doesn’t offer visible changes, as it merely tweaks some APIs, while also “enabling some newly commercialized devices.”
source: Windows Phone Blog via Phone Scoop
Things that are NOT allowed: