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2021.4.15.12 now...?


Feb 21, 2020
Noticing no one who says they’ve gotten it is in CA. I wonder if they’re still ironing out the latest auto wiper rewrite and testing it with people who actually see rain this time of year.


Supporting Member
Supporting Member
Jan 17, 2019
San Francisco
Just got 15.12 for my July ‘20 MY. I live near the SF Bay coast where it is misty most mornings and auto wipers don’t seem to notice it. I need to manually set to 1 or 2 until I am landside of the mountains.
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Oct 12, 2018
My 3 updated to .4.10 just a couple of days ago, then updated to .4.15.12 this morning.

my Y updated to .4.18 yesterday. There definitely isn’t any order to the releases.

no new features have been noticed on any. And I haven’t come across any animals in the Y yet to see that “change”


Moderator, Model 3, Tesla Energy Forums
Nov 28, 2018
Riverside Co. CA
Noticing no one who says they’ve gotten it is in CA. I wonder if they’re still ironing out the latest auto wiper rewrite and testing it with people who actually see rain this time of year.

That might be just because the subset of people who feel compelled to post about tesla software releases that number with the third octet (2021.x.x.XX) are somewhat small. I am in CA and I got this update, and dont normally post about receiving X or Y firmware update because I find the "Me too" posts on each of these versions silly.


Aug 21, 2017
@jjrandorin Me too! Sorry, I couldn’t resist. But I did chuckle in agreement when reading your post. Thanks for moderating. The forums are very helpful in learning how to drive a Tesla.

I got the update in Michigan, but haven’t had a chance to test the new NN. Probably this afternoon I’ll go for a longer drive.


Mar 23, 2017
Los Angeles, CA
I got it this morning in CA. The auto wipers used to wipe when there was no rain. I haven’t tested the update.

Mine used to do that when it was 1st introduced. My wipers would wipe at night after work because the light post above my car would set it off. Didn't bothered me. Was just weird. Sometimes at full speed like it's trying to get rid of bats.

Auto wiper would also skip and shutter at low speed as well which bothered me the most and made it not usable.

Both has been fixed since late 2018 or early 2019.
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Jun 13, 2017
Snohomish WA
Yes, the order of the updates is a mystery. I was getting them within a week of discovery for the last couple of months and then they stopped. I was on 4.12.2 for a month and then bam - I got 4.15.6, 4.15.8, 4.15.10, and now 4.15.12 over the space of a week when it seems the majority of the fleet is going to 4.18. Go figure.


2020 M3 LR AWD
Sep 22, 2020
Los Angeles
I received 15.10 Sunday and received 15.12 late last night with no new release notes. If the other online posts are correct including greentheonly, which seems very plausible, this is a forked version testing and validating the no radar approach. I've also noticed that since 15.10 was installed, my car has been uploading a lot more data back to HQ every night when I come home...averaging 200MBs per day in uploads. Typical data uploads are in the double digit MB range. I have a haunch Elon's diamond hands tweet was not in reference to crypto.
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