Tesla software update 2026.38.4.5 was listed on November 11, 2026, adding another build to the 2026.38.4 branch. Official release notes are still pending. The version number places the build between two documented branches, but its own feature set, vehicle eligibility, and rollout status remain unconfirmed. The neighboring releases give owners a way to understand which changes could carry forward.
One comparison is 2026.38.3.2. That release documented Halloween Mode for the listed AMD vehicles, with a ghost costume for the vehicle display and sounds and lights that react to visitors. Its parked display improvements had narrower requirements, applying to AMD-equipped HW3 Model 3 and Model Y. On select pilot Superchargers, the separate site maps feature showed the layout and live stall status for eligible Intel vehicles, including legacy Model S and Model X.
The same earlier release documented a way to set a destination battery target from the phone. Drivers could enter a destination in Tesla App 4.58.0 or later and choose the amount of energy they wanted left on arrival. If the new build follows that branch, the trip planning and display changes could carry forward, with each feature subject to its own compatibility requirements.
A separate comparison is 2026.38.5, whose notes also covered distinct supervised driving packages. Its HW4 entries listed FSD (Supervised) v14.3.12, with refinements to parking decisions and responses to unusual traffic situations. Its HW3 Model 3 and Model Y entries described v14.3 Lite, with controls for choosing where to stop or park at a destination and adjusting the driving style. Those notes show how the software family can contain different driving features for different hardware.
Owners checking this build for a particular fix or an FSD change will need the notes for 2026.38.4.5 itself. The neighboring branches describe possible points of continuity, and the listing leaves the relationship between those builds open. This article will be updated when official notes arrive, with the confirmed changes and any model, hardware, or regional requirements they specify.
