The IEBlog on the best why to try out the latest IE versions:
Today, the Windows 10 Technical Preview was launched to give an early look at what’s next for Windows. Only available to install by joining the Windows Insider Program, the Technical Preview is also the best way to see the latest from Internet Explorer so join today. In this post we’re sharing what’s new for IE as well as launching the Internet Explorer Platform Suggestion Box for web developers to give us feature suggestions using the UserVoice platform.
At this point it feels like IE is being used as an upgrade stick for Windows.