So our 3 year old Model S just updated to 2018.26. When I got in the car, I was welcomed by "What's New In This Update" showing absolutely nothing. I rebooted, clicked on T->Release Notes same thing: Tesla cutting corners on writing release notes? Not tested on 3 year old or old MCU cars anymore? An update with absolutely nothing new in it? I will check when our new MCU S gets the same version, maybe it's just nothing new for old MCU AP1 cars (then why bother updating?).