Stay up to date with the latest Full Self-Driving software updates, features, and hardware-specific improvements.
Maintained by the HW4Checker team | Last content update August 1, 2026
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Important: FSD v14.3.7 - Limited Rollout on 2026.21.5
Tesla started a very limited rollout of FSD (Supervised) v14.3.7 on the new 2026.21.5 firmware branch. The release notes are identical to v14.3.6, indicating a maintenance build rather than new features.
FSD v14.3.72026.21.5HW4 Only
FSD v14.3.7 - Limited Rollout on 2026.21.5
Tesla started a very limited rollout of FSD (Supervised) v14.3.7 on the new 2026.21.5 firmware branch. The release notes are identical to v14.3.6, indicating a maintenance build rather than new features.
Key Features:
Carries the same release notes as v14.3.6, with no new documented FSD features
Very limited initial rollout with only a handful of tracked installs on release day
Retains the v14.3.6 improvements, including the unified Summon/FSD/Robotaxi model and Actually Smart Summon on Cybertruck
Dual-branch firmware carrying FSD v14.3.6 for HW4 vehicles and FSD v14 Lite for HW3 Model 3 and Model Y. This is the build that took the HW3 v14 Lite branch to wide release across the US and Canada, with larger rollout waves on July 22-23.
Key Features:
FSD v14 Lite distills the intelligence from HW4 v14 into HW3, adding parking, unparking, and reversing plus Arrival Options
FSD v14.3.6 for HW4 continues the RL-training, vision-encoder, and MLIR runtime improvements
A single firmware serves both hardware generations: HW3 Model 3/Y and HW4 Model S/3/X/Y/Cybertruck
Some owners reported braking regressions versus v14.3.5 as the rollout went wide
FSD v14 Lite Point Release - SLOTH Profile and Parking
Short-lived HW3-only v14 Lite build with minimal distribution before being superseded a day later by 2026.20.6.11, which took the branch wide. Notable for documenting v14 Lite's new SLOTH speed profile and parking capabilities.
Key Features:
New SLOTH speed profile with lower speeds and more conservative lane selection than CHILL
Parking, unparking, and reversing capabilities introduced on HW3
Start FSD from Park without pressing the brake pedal (configurable)
Arrival Options for choosing the destination parking type
FSD (Supervised) v14.3.5 began rolling out to HW4/AI4 vehicles in North America with an upgraded reinforcement-learning training stage and a rewritten AI compiler.
Key Features:
Upgraded Reinforcement Learning stage of FSD neural-network training
AI compiler and runtime rewritten with MLIR, with Tesla reporting 20% faster reaction time
Improved traffic-light handling at complex intersections and emergency-vehicle response
Actually Smart Summon extended to Cybertruck with max speed raised to 8 mph
Firmware 2026.21.100 pushed FSD v14.2.2.6 to a wider group of European HW4 vehicles, extending the city-streets rollout that began in the Netherlands on 2026.17.5 in June.
Key Features:
Same FSD v14.2.2.6 build as the June Netherlands launch, moved to a newer firmware base so more vehicles can receive it
FSD availability remains limited to HW4 Model 3 and Model Y in Europe
Roughly 192 tracked vehicles (about 1.5% of the tracked European fleet) at first tracking
Tesla began an early-access rollout of FSD (Supervised) v14 Lite to eligible HW3 vehicles. This is a hardware-specific branch and remains a supervised driver-assistance system.
Key Features:
Start Self-Driving from Park
Arrival Options and Speed Profiles
User-interface updates for the HW3-specific branch
Latest tracked FSD 14.3.4 build as of June 18, 2026. This rollout carries the v14.3.4 feature set forward and adds Actually Smart Summon and Dumb Summon availability for Cybertruck.
Key Features:
Cybertruck gains Actually Smart Summon and Dumb Summon in this build
Continues the v14.3.4 parking options, FSD streak, intervention feedback, and model-unification changes
Listed by Not a Tesla App with TeslaFi fleet statistics as a bug-fix rollout
Feature-bearing 14.3.4 rollout. It extends the 14.3 branch with parking choice visibility, FSD distance and streak tracking, intervention feedback, and additional driver monitoring work.
Key Features:
Parking options now display on the map as the vehicle approaches the destination
Self-Driving App adds distance traveled without intervention and longest intervention-free streak
Actually Smart Summon max speed increased to 8 mph on supported non-Cybertruck vehicles
Driver monitoring notes call out better eye gaze tracking, eyewear handling, and variable-lighting accuracy
Regional FSD rollout for the Netherlands on HW4 Model 3 and Model Y vehicles. Not a Tesla App notes that Tesla did not list additional FSD feature changes for this build.
Key Features:
Netherlands availability for HW4 Model 3 and Model Y
Requires the FSD tutorial and quiz before use
No additional FSD behavior changes were listed by the source
FSD v14.3.2 - Unified Model and Intervention Feedback
Adds the first tracked 14.3.2 change set. Tesla unified the model used across Actually Smart Summon, FSD, and Robotaxi on supported non-Cybertruck vehicles and added post-intervention feedback collection.
Key Features:
Unified model between Actually Smart Summon, FSD, and Robotaxi for supported non-Cybertruck vehicles
Main-screen intervention reason selection after takeover
Retains the v14.3 RL, vision encoder, MLIR runtime, and rare-scenario improvements
Major v14.3 release. Sources list a stronger reinforcement learning training stage, upgraded vision encoder, and a ground-up AI compiler/runtime rewrite using MLIR for faster reaction time.
Key Features:
Upgraded reinforcement learning stage for broader driving-scenario improvements
Upgraded vision encoder for rare and low-visibility scenarios, 3D geometry, and traffic sign understanding
AI compiler and runtime rewritten with MLIR, with Tesla reporting 20% faster reaction time
Better handling of emergency vehicles, school buses, small animals, rare objects, and complex traffic lights
FSD v14.1 to v14.2.1.252025.32.8.5 through 2025.44.25.5HW4 Only
FSD v14.1 and v14.2 Early Branches
Public FSD history lists the early v14 branch beginning with v14.1 on October 7, 2025, then continuing through v14.1.1, v14.1.2, v14.1.3, v14.1.4, v14.1.5, v14.1.7, v14.2, v14.2.1, and v14.2.1.25.
Key Features:
v14.1 introduced the public v14 branch in October 2025
v14.2 followed in November 2025
v14.2.1.25 appears in public history as a December 2025 new-feature build