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The screen and the Tesla app on my phone says "Version: 2018.50.6 4ec03ed". I assume this is a fairly old update that doesn't include the stoplight recognition software for semi-auto driving?
Over 50% of all S and X models in the sample on TeslaFi are still on the same version you have (including my X ). See TeslaFi.com for a good list of who is on what, what versions of AP, what is rolling out now, etc.
2019.8.3 is the current one a lot of people are getting so you might expect that soon.
The only real reason to do so is when TeslaFi shows your car model to be significantly behind the pack.
For example most S and X are still on 2018.50.6 whether you like that or not.
Last I checked it was about 50% as 2019.8.3 is rolling out. When that drops to 20% or something and you don’t have anything new then you mohjt want to have national support check to see if there is any reason your car could be rejecting/failing updates.