125 miles in with FSD v14.3.13, here’s my review and experiences so far with this new build: FSD v14.3.13 may seem like a minor point change, but I’m seeing a bunch of noticeable fixes and improvements over the previous v14.3.12. First off, highway driving is HUGELY improved. This build addressed the quirk of making too many lane changes. I noticed over the last week that V14.3.12 used to do way too many lane changes in the standard profile- this is much improved now. It doesn’t make unnecessary lane changes as much anymore which for most people is a great thing. I’m so happy about this change and I was really hoping this was addressed, as Hurry had even less lane changes than standard. I’m all for it making any lane changes needed in mad max but in standard it needs to just relax a bit. This update definitely was a big improvement and glad it addressed it. FSD v14.3.13 also addressed and completely fixed the twitch I had on one turn lane by my house. I did 4 or 5 test loops to confirm and it aced it every single time! This turn lane has a bike lane and huge slotted line area I’ve mentioned before which confused it. Really happy about this and glad to see it fixed, been an issue since v14.3.4 for the most part and the steering inputs are now perfectly linear and smooth for it. Steering inputs and every input just seems another step up in smoothness over v14.3.12. Very confident in city streets, great in lots and mad max is very zippy and quick. Something that should be addressed is waiting too long to get over to make a turn on city streets. I noticed this improved on highway in this build for sure, but it’s late to start moving over for exits or turns and this is especially an issue when there’s traffic or other cars. It waits too long and has to make a late lane change to get into a turn lane, and not always assertive enough. For example a right turn is coming up and it’s in the left or middle lane, FSD waits too long to get over so it needs to move to right lane and then into the turn lane quickly. Also, sometimes in traffic at a light, it leaves a bit of a gap between the car in front and lurches forward a bit. I think this started in v14.3.8 or .9 but it’s still here, better than before but still present. Parking has also been exceptionally good in lots this build, took it to lunch, grocery store, and ran errands and it did a good job with all 3. Just took it to get dinner and it parked very well in the very first spot available. Where I noticed a regression since v14.3.12 is on this car when I select driveway at home, it tries parking in my neighbor across the streets driveway. Never seen this before and not an issue with v14.3 lite but it likes the neighbors driveway. Something else that improved for me on highways here is it’s pretty good with getting out of the passing lane quickly. This is on highways with 5 or 6 lanes; not sure how it would do on rural interstates with light traffic and 2 lanes. It would pass someone and get right back over even if there was nobody behind me. Also, Halloween mode rocks. Need to mention it again how great of a job the Tesla UI team did with this update. The attention to detail is incredible and it’s so fun to use, I wish the turn signal noise could have the option to be the normal one but that’s it. Everyone I have showed it to loves it. Overall, some huge improvements here over v14.3.12, and still some things it needs more polish on. More drives to come tomorrow and will see what else I can find. This update cadence is awesome, great work @Tesla_AI!

FSD v14.3.13 has been a huge improvement over v14.3.12 on the highway so far. Way less lane changes, I’ll have a full review this evening out.