This is highly likely. I think a portion of the cars since early Q2 probably has had the increased range, when they started switching over to the new 82 kWh battery. Everything delivered in Q3 almost certainly has the increased range. It's happened many times over the last few years, where Tesla introduces a new feature, waits a few months until the supply chain completely clears of all existing builds, then updates the website. Usually it's an upgrade like this, sometimes it's feature removal like radar and passenger lumbar controls.
Also, during my normal morning coffee break Electrek browsing session, I noticed that Tesla now makes a J1772 Wall Connector. Awesome! This will be useful because in the not-too-distant future households will have multiple EVs, friends will be visiting with their EVs, and most cars on the road will use the J1772 standard. Tesla fanbois don't kill me, but I wish Tesla made the J1772/CCS as the standard for US cars. They already do Type-2/CCS in Europe and Asia, it's not that hard!