Perhaps someone more aware could explain better, but I believe there's a deep neural network in the car that processes data from the cameras and radars - learning about things in the process. So, if the car improves, it could be either due to a patch or a the car learning itself. I could be very wrong though.
RE: posts 34, 39 and 42: Beyond the basic calibration procedures, such as what is needed for the car to engage in auto parking and engage AP, I see no evidence of the car learning anything new. At this point AI does not seem to have been incorporated even though there is an NVDA chip running the show.
We now have 1,600+ miles on
2017.38 f87c64d5 and I have seen no change or improvement in the car's ability to stay centered, it continues to prefer the left side of the lane especially coming out of a sweeping curve, It continues to want to drift into the left lane when going into a trough, for unknown reasons it sometimes does not recognize the lane line and will drift across it. It sometimes recovers and finds it's lane. There has been no improvement in it's tendency or hesitate to overtake a truck in the adjacent lane, not every time but often enough.
My point is that we have covered 1,600 miles in 5 days, all with the subject update, over freeways, highways, flats, mountains and small towns. The lighter the traffic, the better the car behaves. It's behavior seems to become more dicy as traffic, especially with trucks, increases. One must always be awake to the fact that AP is still in Beta. It's current form is a great feat but it is not yet perfect. Driver beware.
Again, over 5 days and 1,600 miles, I see no evidence of learning. I expect the next update will improve AP, but it will not do it on it's own today. Now in Winslow, NV.