Interesting how this also varies significantly by region.... 2020.11.1.2 to Europe, 12.11.1 almost exclusively US, 12.10 to multiple regions in parallel (including Canada).
Aside from the slightly increased numbers going to 11.1.2 (Europe), still just a trickle going beyond 8.3/12.5/12.6 for Model 3.
"Up to date" seems to vary widely for your specific combination of region, model, HW, etc.