Tesla is rolling out software version 2026.39.100 across Europe, and it brings more than a cosmetic rebrand. The feature previously known as FSD (Supervised) is now officially called Tesla Assisted Driving (TAD) on European vehicles — a change driven by regulatory pressure and formally approved by Dutch vehicle authority RDW on November 3, 2026. More importantly, the update also tightens how fast TAD can travel relative to posted speed limits, which affects how the system behaves every single time you start your car.
What Changed in 2026.39.100
| Change | Type | Models |
|---|---|---|
| FSD (Supervised) renamed to Tesla Assisted Driving (TAD) | Official | All HW4+ models |
| Maximum speed margin above posted limit reduced from +50% to +10% | Official | All HW4+ models |
| Speed margin defaults to 0% deviation on every vehicle start | Official | All HW4+ models |
| Other speed-related functions disabled by default | Official | All HW4+ models |
Why the Name Changed
The rebrand isn't arbitrary. Germany's Federal Ministry of Transport had flagged "Full Self-Driving" as "somewhat misleading" because the system does not take over the complete driving task — the driver remains responsible at all times. Tesla began updating its European websites to the new "Tesla Assisted Driving" branding as early as October 8, 2026, and the RDW (Netherlands' vehicle authority, which first approved FSD in Europe back in April 2026) formally signed off on the full package of changes on November 3. The name now appears on the in-car display, in the owner's manual, and across driver information materials.
Functionally, TAD is the same supervised driver-assistance system it always was. You still need to keep your hands on the wheel and stay attentive. The name change reflects regulatory reality, not a capability downgrade.
The Speed Change That Actually Affects Your Drive
The renaming is the headline, but the speed margin adjustment is what you'll feel. Under the previous setup, TAD could travel up to 50% above the posted speed limit if you had the margin set that way. That ceiling is now hard-capped at +10%. On top of that, the system resets to 0% speed deviation every time you start the vehicle — so any custom margin you set last session won't carry over. According to the RDW's approval documentation, additional speed-related functions are also disabled by default under the new rules.
In practice: if you're on a 130 km/h motorway, TAD will now max out at 143 km/h rather than the previous 195 km/h theoretical ceiling. For most everyday use this won't matter much, but if you had been relying on a higher margin setting for highway cruising, expect to notice the difference.
Action Plan for European Tesla Owners
If you're in one of the ten approved EU countries — the Netherlands, Lithuania, Estonia, Denmark, Belgium, Slovenia, Czechia, Croatia, Slovakia, or Latvia — here's what to do when 2026.39.100 arrives on your car.
- Check for the update. Go to Controls > Software and tap Check for Updates. If 2026.39.100 isn't available yet, it's rolling out progressively — check again in a day or two.
- Confirm your hardware eligibility. TAD requires Hardware 4.0 (HW4) or later. If you're unsure, go to Controls > Software > Additional Vehicle Information and look for your Autopilot computer version.
- After the update installs, review your speed margin setting. Navigate to Controls > Autopilot > Speed Limit (or the equivalent TAD menu). The system will default to 0% on every start — decide whether you want to set it to the new maximum of +10% or leave it at 0%.
- Note the new name in the UI. Any reference to "FSD (Supervised)" in your menus, trip summaries, or subscription details will now read "Tesla Assisted Driving" or "TAD." This is expected — nothing is broken.
- If you subscribe monthly, check your billing description. Subscription listings in approved countries (for example, €99/month in Estonia) may update to reflect the TAD name. Verify your subscription is still active after the update.
What About the Rest of Europe?
If your country isn't on the approved list yet, you won't receive TAD with this update — but the path is widening. According to available reporting, an EU-wide vote that would require at least 15 member states representing 65% of the EU's population is expected no earlier than December 2026. Germany, one of the EU's largest markets, has publicly backed swift EU-wide approval following its own agreement with Tesla. If that vote passes, access could expand significantly in early 2027. For now, keep an eye on our FSD coverage for country-by-country updates as approvals come through.
📋 Tracking Tesla software? See every firmware, FSD and app version in one place in our Tesla Software Update Tracker.
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Sources & reporting notes
The links below identify the material source records used for this report.
- @TeslaNewswire on X (2026-11-10T07:11:09.000Z) — Direct source
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