I have an AWD LR M3. Now with 15000mi. My range had been dropping over the past 6 months at a predictable rate to around down 4%. I had a range of 310 when I took possession of the car November 2018. It had dropped to a low of 296. Since the latest firmware upgrade (2019.36.2.1) it has steadily increased. Today the 100% SOC is at 304.66 (see Teslafi graph link below). I have used the new SCHEDULED TO LEAVE option while charging so the battery has been conditioned each morning. Not sure if this is directly related to the firmware upgrade, related to the battery conditioning in the morning or random. The range uptick occurred shortly after the firmware upgrade. If the graph posts you can see it has not leveled off yet. Ill post an update when it does.
PS. Im not quite sure how to post the actual Teslafi graph but here is the link to an imgur shot.