Picked up mine today (MXP) with build date of 6/12. No matrix unfortunately so it seems the switch was 6/13-6/15! On the other hand the car was pretty much flawless - haven’t been able to find anything so far, so very happy about that considering it is replacing a 2023 MX that was bought back by Tesla. Also delivery was great, car even waxed and spotless, much better experience than what I have had with BMW/Mercedes etc. dealerships.
Even though no matrix, not sure I will miss them. Have had two BMWs recently and have lived with their equivalent of matrix - you can code what matrix headlights can do on BMWs but not in Teslas since software has no functionality for them - and even though it is a good feature, it is not something I would reject a car for (or even upgrade if they become available to retrofit).