I have been searching for the article and video to no avail; however, I imagine some of you may be better at that than I.
The video was a release on the changes at Silverstone for this season's race. I seems they have been repaving parts of the circuit in preparation for the cars running in the anti-clockwise direction going forward.
That should make it a very different circuit to drive. It will be different for significant reasons in my estimation. Turn 1 for example will become a 180 left hander, which ends in a 90 to the right. Hanger straight will end with a gentle right that leads to a harder left (Becketts) into the esses.
I hope one of you can find the video, as it had some good technical information about the change in black-top.