Microsoft officially announced Windows Phone 8.1 on Wednesday during the first day of its BUILD conference, running through most of its new features but leaving out when the update will be released. Thankfully, it didn’t take long for that information to leak out in the form of an internal email obtained by Neowin, revealing the software update will be available on April 14. The Verge also confirmed the news with its own sources, noting that the planned release date could potentially slip due to unexpected delays.

While the release of Windows Phone 8.1 later this month is officially meant for developers creating apps and software for the updated operating system, regular Windows fans will be able to try it out for themselves as well using any smartphone running Windows Phone 8. Of course, there’s a slight risk involved if you choose to download the new software; just like with early developer versions of any major software update, you may encounter a few bugs.

Windows Phone 8.1 offers a ton of new features including a notification center, Microsoft’s personal digital assistant Cortana, the ability to customize your homescreen with any image, and other changes to the UI. While Microsoft is expected to release the update later this month, the first smartphones running the OS won’t hit the market until sometime the summer.