It would be nice to get an email from Tesla as follows:
'Dear valued Tesla customer and Autopilot user,
We have made a change to the speed restriction of Autopilot on 'in-town' roads, where Autopilot is now restricted to the speed limit, instead of the previous 5mph over the speed limit. We have made this change because our data analysis has shown that this will be safer for most of our drivers where they choose to use Autopilot on 'in-town' roads.
We understand that it may be irritating for users who are accustomed to the previous behavior, but be assured we have everyone's best interests at heart. We are working on a further refinement to detect when most passing vehicles are indeed traveling at more than the speed limit on these 'in-town' roads, and when we detect this situation we will allow Autopilot to be set at the speed which will match the surrounding traffic. Please be patient while we implement and qualify this feature.
Autopilot behavior on freeways and major divided highways (which is the main use case for Autopilot) is unaffected in the latest release.
Thank you - Tesla'
.... but we didn't get the email....