A Tesla software build labeled 2026.2.9.5 turned up on a third-party tracking service this week, briefly pushing speculation that it could be carrying Full Self-Driving (Supervised) v14.3. It is not. Fleet data from Teslascope and other trackers shows no real vehicle installs, release notes, and no sign of v14.3 anywhere in the build. Also, the production fleet stays on FSD v14.2.2.5.
A build number without a build
When a real Tesla over-the-air update goes out, the trail is hard to miss. Vehicles start reporting the new version. Install counts rise as Tesla widens the wave. But, none of that happened with 2026.2.9.5.
Teslascope, which tracks tens of thousands of vehicles, saw zero confirmed installs and no parsed release notes for this version.
Two explanations stand out, someone may have entered the version number manually into the competing service, or a test deployment was pulled before it could finish installing. Either way, the result is the same, there is no evidence this build reached any customer vehicle, and there is no evidence it carries FSD v14.3.
What 2026.2.9 and 2026.2.9.1 actually include
The rest of the 2026.2.9 branch is very much real and rolling out. Hardware 4 vehicles, including the Model 3, Model Y, refreshed S and X, and Cybertruck in supported markets are receiving FSD (Supervised) v14.2.2.5 through these builds.
Alongside the FSD update, the 2026.2.9 line brings a notable terminology shift. “Navigate on Autopilot” is now called “Navigate on Autosteer.” The “FSD Computer” label has been changed to “AI Computer.” The update also adjusts how map versions appear in the interface and expands ECU status panels to include non-CAN modules like the Autopilot processors and telematics unit.
FSD v14.2.2.5 itself is a capable release. It refines the upgraded neural-network vision encoder, adds configurable arrival options, and improves how the car handles emergency vehicles, debris, gates, unprotected turns, lane changes, and school buses. Still, owner feedback has been mixed. Some drivers report smoother behavior. Others point to navigation oddities, inconsistent signaling, and occasional hesitation. Point releases like 14.2.2.5 were meant to address those gaps, but analysts say v14.3 is where Tesla is targeting the bigger fixes.
Why FSD v14.3 has people watching every build
Elon Musk has been direct about what v14.3 is supposed to be. On X, he said it “will probably go to wide release end of week,” after earlier saying it was a few weeks out. In March, he confirmed the build was in employee beta. His description of the update as the “last big piece” of the self-driving puzzle has primed owners to scrutinize every new version number.
And the expectations are not entirely hype. Reports point to v14.3 as a meaningful step up, a much larger neural network, better reasoning in complex urban environments, and reinforcement-learning improvements that are meant to close the gap on rare edge cases. That said, past FSD releases have almost always needed follow-up patches. FSD v14.3, if it follows the pattern, will likely come with 14.3.1 and 14.3.2 close behind.
Hardware 4 first
One thing worth tracking alongside the version numbers is the hardware split. Full FSD v14.x releases are going to Hardware 4 vehicles first. Tesla’s AI4 computer and updated camera suite are what the latest neural-network stack is designed for.
Hardware 3 owners are on a separate path. A “FSD v14 Lite” build is expected for older vehicles sometime around mid-2026. It will carry a subset of v14’s improvements tuned for AI3’s reduced compute capacity. For HW3 owners watching the 2026.2.9.x branch closely, that is not their lane, a different firmware branch will handle their update.
However, the current production baseline for HW4 owners is FSD (Supervised) v14.2.2.5, delivered through 2026.2.9 and 2026.2.9.1. That is a solid build, better than most of what came before it, but it is not v14.3. FSD v14.3 is in testing and appears close, but it has not shipped to owners yet.
You may also like to read:
- Musk says Tesla FSD v14.3 could reach owners by this week’s end »
- 93-year-old grandma’s Tesla Model Y with FSD is changing her life »
- Tesla enthusiast unlocks FSD Supervised in Japan and EU on HW3 »
We’ve launched an official Tesla Owners Online Forum. Join early and claim your "Founding Fuel" badge.
