You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
I see the same behavior. Charge to 90% gave me 216 miles from SR+ before V10. Only have 208 to 211 after 90% charge.
Open a ticket with Tesla, and they did a remote battery check and told me my battery is fine and close the ticket without even give me a call.
Not the best service in the...