This app can help you to upgrade to the Developer preview version. Developer preview version is for developers, so ordinary users if you want to experience the Windows Phone's latest preview version first need to turn himself into a developer, is also say their Microsoft account into a developer account.
What's new in this version
Approximate size1.1 MB
InstallationGet this app while signed in to your Microsoft account and install on up to ten Windows 10 devices.
Language supportedEnglish (United States)