The Model Y Juniper refresh comes with a modern braking system that is very similar to what Mercedes did with the electric CLA sedan, aiding energy recuperation and increasing the car's overall efficiency. Its new heat pump, however, will take a year to arrive to all production units.https://www.notebookcheck.net/Model-Y-Juniper-comes-with-brake-by-wire-and-new-heat-pump-that-won-t-be-available-to-all-buyers.979883.0.html
TLDR:Musk owns Tesla so I will never buy one...