Google Earth Terrain has been updated to reflect very recent images. My system was started in September of 2016 and a neighbor has installed a system just within the last month or two. Both are now imaged in both standard view and Terrain view.
Google Earth allows you to find out interesting things about your neighbourhood! The other useful thing is a drone - I bought one last year and I was surprised to find that several of my neighbours had solar PV systems that were not visible from the street.
Yes, I just noticed one in our neighborhood yesterday which in not on the last update. Unfortunately Google Earth has a large territory to cover and updates are rare. It’s amazing that they do as good of a job as they do.