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Firmware update cadence
- Thread starter MacGreiner
- Start date
TexasTezla
Member
I think Tesla decided the next update was going to be the FSD Beta, which was supposed to ship five months weeks days ago, and is now expected to ship in 5 days weeks months. The delay is likely messing with their updates schedule.
We had a good run there but it's an all hands on deck event for the S/X refresh and the big V9 push so all the piddly little stuff we were getting got put on hold. I'm sure we'll get something soon. There's a "next quarter" joke in there somewhere but I don't want to get downvoted into oblivion...
I strongly doubt this. I think there’s a “Big Bang” coming with the S/X release and the FSD updates.
Bear in mind that - for FSDv9, the underlying Autopilot code is going through a major rewrite, basically removing radar data from the mix. Will be all vision based. This is a big change.
So I suspect we’re in a lull right now, not an end by any means. In fact, once the “Big Bang” happens — I’m guessing we’re going to see software updates fast and freakin’ furious.
Tarpan
Member
It's a lull, but with two known huge updates coming (UI update, FSD update) we are likely to see a rapid escalation in patches once those roll out in addition to incomplete features that will roll out with the UI after the initial release.
My biggest concern will be quality. Incremental releases allow you to keep risk of severe impact very low as you make small changes and use your public fleet to test for you. As the backlog of code builds up, the size of that release is getting larger meaning the level of QA needed is much much higher and the expectation of missed items is only going to be that much higher.
It will stabilize, but I expect we'll see a boat load of patches in the days after one or both of those updates getting released.
My biggest concern will be quality. Incremental releases allow you to keep risk of severe impact very low as you make small changes and use your public fleet to test for you. As the backlog of code builds up, the size of that release is getting larger meaning the level of QA needed is much much higher and the expectation of missed items is only going to be that much higher.
It will stabilize, but I expect we'll see a boat load of patches in the days after one or both of those updates getting released.
I'm guessing that normal cadence will resume in Q4. Now Tesla has to support 3 UIs, old S/X, 3/Y and new S/X.
EVRider-FL
Active Member
There have been regular updates of 2021.4.x builds, but only bug fixes. We’ve been getting these in our 2018 S an 3, so nothing out of the ordinary. Older cars get fewer updates at this point.
Ah, but there have been no major (or arguably even minor) revisions — just patches. 2021.4.x releases were branched from the trunk revision in the week of January 25–31, and lots of other vehicles are getting 2020.48.37.x, which branched in the week of Nov. 23–29.
So as of tomorrow, Tesla vehicles are either 15–16 weeks or 24–25 weeks behind HEAD. That's anywhere from a third of a year to half a year.
Yes, that's a really long time to get nothing but the most critical bug fixes back-ported from the trunk. They must have massively diverged for it to be taking this long to get a shippable build. Whether that's good or not remains to be seen.
ediflyer
Member
Yep I'm still on 2020.48.12.1 here - the so-called 
update at Christmas never looked like it amounted to much and I haven't seen any significant changes in any of the updates since so couldn't see any point in updating!
update at Christmas never looked like it amounted to much and I haven't seen any significant changes in any of the updates since so couldn't see any point in updating!
HighZ
Member
I would love to know what their testing with all the different versions. I just installed 2021.4.18. It seems this may be destined for the next mass upgrade from 4.15. 4.15.10 has a lot of pending installs though.
Well, my 3 got 2021.4.15.10 pushed today, and the X got 2021.4.18. Within a few hours of each other. Both configs have FSD AP3. So there’s that.
CaliSurfer
Member
I'm curious to why some Model S versions have 2021.x.x firmware while some are still on 2020.x.x? My car hasn't updated since 2020.48.37.2, is there a way to get a more recent firmware version? When I check for updates, it says my car is up to date.
Tarpan
Member
I have read people commenting on older hw versions won’t get 2021+ updates. Not positive if that’s accurate but I have seen that comment a few times.
dmicah
Internet Weasel
Interesting: my 2017 model s is on 2021.4.18. I have MCU2, and I notice you're on MCU1
CaliSurfer
Member
That was my assumption too was that I won't get many new updates because I am still on MCU1. But I will be updating to a new MCU2 here soon so we will see if that comes true!
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