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How much more range after 2021.4.6. update?

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Software Version 2021.4.6 cryptically states:
"Your car will now display a slightly higher range to more accurately reflect the capacity of the battery."
Not having recorded the state of charge before today's update, to see whether the displayed increase is even noticeable,
can anyone enlighten me:

1. how much range was added?
2. what's the technical reason that prompted the adjustment?

P.S.: before anyone comments - I realize that the actual battery capacity has not changed
 
2. what's the technical reason that prompted the adjustment?

I believe this update took the 2021 3P to 315 rated miles (the nominal EPA rating) by adjusting the constant down to about 256Wh/rmi. Just based on various reports here.

Previously it displayed about 310 miles with the same ~80.6kWh (260Wh/rmi).

Don’t know of any other changes to displayed range for Model 3 for this update. I think the ranges are now final.