Here's a video by their chief architect detailing the changes.
https://www.youtube.com/watch?v=yvB6BqYs2T0
I know there's an O'Reilly video about this guy's boss but I can't find it. Sadly another government change was to end all this development. But in the end near as i can figure though a lot of the bosses left the changes have continued but at a slower rate.
No government website in America begins to compare to the clearness and simplicity that exists in Britain nearly a dozen years later.