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Software Update - Not the Big ONE...

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I'm on 2.32.65 - Tesla service told me that there are many different firmware versions out there for the different model cars and options installed. Definitely not one size fits all, and apparently that is also a reason for the phased rollout of new firmware due to the different builds for different configurations.
 
Update today to 2.36.31 from 2.34.100 "Minor Fixes and improvements" Last prep fro Weds/Thu ... ?

I think it does a few minor things, but the main reason for this update (which seems to be being sent to the whole fleet quickly - I got it this morning) is security to address the hack someone came up with using Wi-Fi and the browser. I've read that the update introduces code signing at the module level.