More than three months after the first builds of Windows Phone 8.1 hit the scene, Microsoft is ready to tick more features off the to-do list with the OS's first refresh. Known aptly as Update 1, the download will be available as a developer preview starting next week. Understandably, Cortana is on the top of the release notes, because the beta program will officially expand to the UK and China as promised in April. This means users in both countries can enjoy different voices and more localized options, such as air quality info (in China specifically), local celebrities, specialized suggestions and commute times. Additionally, the Chinese version supports Mandarin and comes with unique animations, sounds and other visual features.