A new API was found in this update that will be used for cached vehicle data. In a future update your car will send information not only when requested, but also before it goes to sleep.
This change could allow for several big improvements in the app.
This change will allow the API to contain the latest vehicle data without having to wake up the vehicle.
This will likely mean that once you open the app in a future update, it'll be able to fetch car informaiton without having to wait for the vehicle to wake up first.
You'll instantly have the latest battery state of charge, range, open door/window information, odometer reading and everything else.
This change will also allow the vehicle to sleep longer, therefore reducing energy consumption known as phantom drain. It's possible that in the future Tesla will not wake up the vehicle once you open the app like it does today.
Instead Tesla may wait to see if the owner is only checking on the vehicle or if they're going to send a command to the vehicle such as turning on the climate system.
This will be a very positive change that will allow you to instantly have access to the vehicle's latest data without having to wake it up or cause some energy lose.