Screenshot of windows.com on 17 October 2013, 'Meet the new Windows'. Photo: Microsoft

Closed now, but still some interesting stuff in here:

Hello everyone! We’re a group of engineers from the Windows team at Microsoft. Our focus areas included user experiences, the app platform, Internet Explorer and more. We are here from 10:30 to noon to answer your questions about Windows 8.1. We are best suited to discuss the vision behind its development, features and benefits, and our personal experiences throughout the development and launch. Find out more about Windows 8.1 on the Windows Blog.

We will be officially starting at 10:30am PST / 1:30pm EST and we'll be responding to questions from the MSFT_Jason, MSFT_katie, MSFT_Ian, MSFT_Rob, MSFT_Galileo and Windowsonreddit handles –more details on each of us in our separate handles.

EDIT: Thanks, all! We're closing out a few questions and logging off. It's been fun! Be sure to visit the Windows Blog for more details and download Windows 8.1 if you haven't already.

EDIT 2: One last note -- starting today for the next 8 days – we will pick 810 (see what we did there?) random winners per day who tweet and share their new Start screen after updating their Windows 8 device to Windows 8.1 with the #MyStart hashtag. [more]

Hi! We're Windows 8.1 engineers. Ask us anything!