I just got Windows 10 Insider Preview Build 14942. It took a long time to install it. You can read about it at the link. I did notice a update to the Photos app. I do not own a laptop but I see they made changes to the touchpad experience. The touchpad has always been a pain for me in the past. I may have never had a laptop or Chromebook with a good touchpad.
I see they also made a change to the Task Manager.