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  "path": "/2026/04/07/tesla-fsd-14-3-rolling-out-mlir-lattner/",
  "publishedAt": "2026-04-07T21:52:43.000Z",
  "site": "https://electrek.co",
  "tags": [
    "News",
    "Tesla",
    "more…"
  ],
  "textContent": "Tesla has started rolling out Full Self-Driving (Supervised) v14.3 to HW4 vehicles, and the headline change is under the hood: Tesla rewrote the AI compiler and runtime from scratch on MLIR, which the automaker says delivers a 20% faster reaction time.\n\nThe update, shipping as software version 2026.2.9.6, also brings a new parking spot pin on the map, better behavior around emergency vehicles and school buses, and Tesla’s first public acknowledgement that it’s leaning on MLIR — the compiler infrastructure built by Chris Lattner, who briefly led Tesla Autopilot back in 2017.\n\nmore…",
  "title": "Tesla FSD v14.3 rolls out with MLIR rewrite, 20% faster reactions"
}