Tesla releases long-awaited update to its 'Full Self-Diving' software. See it in action.

The latest incremental update is here.

Tesla released Version 9.0 of its (still Beta) Full Self-Driving software Friday night, surely delighting customers who have been waiting for the promised update for literally years. Notably, despite the name, the update does not actually make Teslas fully autonomous — a fact that the update makes very clear.

"It may do the wrong thing at the worst time, so you must always keep your hands on the wheel and pay extra attention to the road," read release notes posted on Reddit by a Tesla owner. "Do not become complacent."

At present, the FSD Beta Version 9.0 is still only available to limited number of customers and Tesla employees in the Early Access program, which translates to a couple thousand people. As with previous updates, those select few were able to download the software directly to their cars.

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Once downloaded, Tesla owners were quick to test out the new feature and post videos to social media. The results were mixed, to say the least.

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A video, posted July 10, shows the Beta Full Self-Driving Version 9 in action — complete with multiple mistakes.

"That's why Elon did say be extra cautious," says the driver in the below video at approximately the 10 minute and 40 second mark.

Indeed, the release notes are full of warnings.

"Use Full Self-Driving in limited Beta only if you will pay constant attention to the road, and be prepared to act immediately, especially around blind corners, crossing intersections, and in narrow driving situations."

SEE ALSO: Tesla owner keeps using Autopilot from backseat—even after being arrested

Consider yourself warned. Hopefully the Tesla owners with access to FSD Beta 9.0 do as well.