Tesla 2021.36.8.6 Software Update Rolling Out: Release Notes

Tesla has started rolling out its 2021.36.8.6 software update, as noted by @Teslascope. The update was detected on a bunch of refresh Model S Plaid vehicles on its service (along with some Long Range Model S refresh versions as well), that were previously running 2021.36.5.3.

According to @CodingMark, 2021.36.8.6 includes Full Self-Driving 10.4 beta for testers, along with Sentry Mode Live Camera Access:

You can see the full 2021.36.8.6 release notes thanks to @Manic_Marge below: