Answer
14.3.13 is a new FSD build. The release notes stored on this site match 14.3.12 except the version number in the header. Halloween Mode first shipped with 14.3.12 and stays on that version.
Last checked: Nov 2, 2026
14.3.13 rolled out on Tesla software 2026.38.5.10. Tim (@TimDOES) posted at 12:59 AM PT on October 20, 2026 that it was coming to a Cybertruck and Model Y, and that the notes had not changed. David Moss posted the same: no note changes, FSD build 14.3.13. Teslascope logged 2026.38.5.10 on a 2025 Model 3 in New York.
On October 24, 2026, Not a Tesla App posted that 2026.38.5.11 is still 14.3.13 and that the notes stay the same as 2026.38.5.10.
| Topic | 14.3.12 | 14.3.13 |
|---|---|---|
| FSD notes | Same stack as 14.3.13 after the header | Same stack as 14.3.12 after the header |
| Firmware on this tracker | 2026.38.5, 2026.38.5.1, and 2026.38.5.5 | 2026.38.5.10 and 2026.38.5.11 |
| Release date on this tracker | Oct 10, 2026 | Oct 20, 2026 |
| Halloween Mode | First listed on this card | Not added here |
After the version header, the two cards store the same FSD note lines. The header on 14.3.12 starts Full Self-Driving (Supervised) v14.3.12 includes:. The header on 14.3.13 starts Full Self-Driving (Supervised) v14.3.13 includes:. Read the full lists on the 14.3.12 and 14.3.13 version pages.
Halloween Mode is a vehicle-software item. It is listed on the 14.3.12 card. The 14.3.13 card does not add it. Features first shipped on a version stay attributed to that version.
On the 14.3.12 card and not on the 14.3.13 card: Halloween Mode, Emergency Drive Away, Powershare with Powerwall, Set Arrival Energy, Security Improvements.
FSD Update is independent of Tesla, Inc. FSD on owner cars still needs a licensed driver who stays attentive. It is not fully autonomous.