News
US Air Force awards SpaceX $20m contract to support its biggest spy satellites
Slipping beneath the watchful eye of many skilled defense journalists, the government contracting database FPDS.gov indicates that the US Air Force awarded SpaceX more than $20 million in November 2017 to conduct a design study of vertical integration capabilities (VIC). Describing what exactly this means first requires some background.
Vertical whaaaat?
The flood of acronyms and technical terminology that often follow activities of the Federal government should not detract from the significance of this contract award. First and foremost, what exactly is “vertical integration” and why is significant for SpaceX? Not to be confused with more abstract descriptions of corporate organization (vertical integration describes one such style), integration here describes the literal process of attaching satellite and spacecraft payloads to the rockets tasked with ferrying them to orbit.
Likely as a result of its relative simplicity, SpaceX has used a system of horizontal integration for as long as they have been in the business of launching rockets, be it Falcon 1, Falcon 9, or Falcon Heavy. In order to integrate payloads to the rocket horizontally, SpaceX has a number of horizontal integration facilities (HIF) directly beside each of their three launch pads – two in Florida, one in California. After being transported from the company’s Hawthorne, CA rocket factory, Falcon 9 and Heavy boosters, second stages, payload fairings, and other miscellaneous components are all brought into a HIF, where they are craned off of their transporters (a semi-trailer in most cases) and placed on horizontal stands inside the building.
- The large, white crawler underneath Falcon 9 is one of several methods of transportation SpaceX uses. (Instagram /u/robhubar)
- Falcon Heavy is composed of a Falcon 9 upper stage and three Falcon 9-class boosters. (SpaceX)
- The fully-integrated Falcon Heavy rolls out to Pad 39A. For vertical integration, think of this… but vertical. (SpaceX)
While in the HIF, all three main components are eventually attached together (integrated). The booster or first stage (S1) has its landing legs and grid fins installed soon after arrival at the launch site, followed by the mating of the first and second stages. Once these two primary components of the rocket are attached, the entire stack – as the mated vehicle is called – is once again lifted up by cranes inside the facility and placed atop what SpaceX calls the strongback (also known as the Transporter/Launcher/Erector, or TEL). A truly massive steel structure, the TEL is tasked with carrying the rocket to the launch pad, typically a short quarter mile trek from the integration facility. Once it reaches the pad, the TEL uses a powerful hydraulic lift system to rotate itself and its rocket payload from horizontal to vertical. It may look underwhelming, but it serves to remember that a complete Falcon 9/Heavy and its TEL are both considerably more than twice as tall as a basketball court is long.
Falcon Heavy goes vertical pic.twitter.com/uG1k0WISv1
— Elon Musk (@elonmusk) January 5, 2018
Once at the pad, the TEL serves as the rocket’s connection to the pad’s many different ground systems. Crucially, it is tasked with loading the rocket with at least four different fuels, fluids, and gases at a broad range of temperatures, as well as holding the rocket down with giant clamps at its base, providing connection points to transmit a flood of data back to SpaceX launch control. SpaceX’s relatively unique TEL technology is to some extent the foundation of the company’s horizontal integration capabilities – such a practice would be impossible without reliable systems and methods that allow the rocket to be easily transported about and connected to pad systems.
Still, after the Amos-6 mishap in September 2016, which saw a customer’s payload entirely destroyed by a launch vehicle anomaly ahead of a static fire test, SpaceX has since changed their procedures, and now conducts those static fire tests with just the first and second stages – the payload is no longer attached until after the test is completed. For such a significant decrease in risk, the tradeoff of an additional day or so of work is minimal to SpaceX and its customers. Once completed, the rocket is brought horizontal and rolled back into the HIF, where the rocket’s payload fairing is finally attached to the vehicle while technicians ensure that the rocket is in good health after a routine test-ignition of its first stage engines.
- Elon Musk’s Roadster seen before being encapsulated in Falcon Heavy’s massive payload fairing. Below the Tesla is the payload adapter, which connects it to the rocket. (SpaceX)
- Imagine this building-sized fairing traveling approximately TWO MILES PER SECOND. (USAF)
- Finally, the fairing is transported vertically to the HIF, where it can be flipped horizontal and attached to its rocket. (Reddit /u/St-Jed-of-Calumet)
Before being connected to the rocket, the payload itself must also go through its own integration process. Recently demonstrated by a flurry of SpaceX images of Falcon Heavy and its Roadster payload, this involves attaching the payload to a payload adapter, tasked with both securing the payload and fairing to the launch vehicle. Thankfully, the fairing is far smaller than the rocket itself, and this means it can be vertically integrated with the payload and adapter. The final act of joining and bolting together the two fairing halves is known as encapsulation – at which point the payload is now snug inside the fairing and ready for launch. Finally, the integrated payload and fairing are lifted up by cranes, rotated horizontally, and connected to the top of the rocket’s second stage, marking the completion of the integration process.
A different way to integrate
Here lies the point at which the Air Force’s $20m contract with SpaceX comes into play. As a result of certain (highly classified) aspects of some of the largest military satellites, the Department of Defense (DoD) and National Reconnaissance Office (NRO) prefer or sometimes outright require that their payloads remain vertical while being attached to a given rocket. The United Launch Alliance (ULA), SpaceX’s only competition for military launches, almost exclusively utilizes vertical integration for all of their launches, signified by the immense buildings (often themselves capable of rolling on tracks) present at their launch pads. SpaceX has no such capability, at present, and this means that they are effectively prevented from competing for certain military launch contracts – contracts that are often the most demanding and thus lucrative.
It’s clear that the Air Force itself is the main impetus pushing SpaceX to develop vertical integration capabilities, a reasonable continuation of the military’s general desire for assured access to orbit in the event of a vehicle failure grounding flights for the indefinite future. For example, if ULA or SpaceX were to suffer a failure and be forced to ground their rockets for months while investigating the incident, the DoD could choose to transfer time-sensitive payload(s) to the unaffected company for the time being. With vertical integration, this rationale could extend to all military satellites, not simply those that support horizontal integration.
- A hop and a skip south of 39A is SpaceX’s LC-40 pad. (SpaceX)
- Like all SpaceX pads, horizontal integration is a central feature. (SpaceX)
- LC-40’s brand new TEL carries a flight-proven Falcon 9 and Dragon out to the pad. (SpaceX)
Fittingly, the ability to vertically integrate satellites is likely a necessity if SpaceX hopes to derive the greatest possible value from its recently and successfully introduced Falcon Heavy rocket, a highly capable vehicle that the government is likely very interested in. Although the specific Air Force contract blandly labels it a “Design Study,” (FPDS.gov account required) its hefty $21 million award may well be far more money than SpaceX needs to design a solution. In fact, knowing SpaceX’s famous ability to develop and operate technologies with exceptional cost efficiency, it would not be shocking to discover that the intrepid launch company has accepted the design study grant and instead jumped head-first into prototyping, if not the construction of an operational solution. More likely than not, SpaceX would choose to take advantage of the fixed tower (known as the Fixed Service Structure, FSS) currently present at Pad 39A, atop which a crane and work platforms could presumably be attached
Intriguingly, it is a real possibility that Fairing 2.0 – its first launch scheduled to occur as early as Feb. 21 – could have been upgraded in part to support present and future needs of the Department of Defense, among numerous other benefits. Fairing 2.0’s larger size may have even been precipitated by physical requirements for competing for and dealing with the largest spysats operating by the DoD and NRO, although CEO Elon Musk’s characterization of that change as a “slightly larger diameter” could suggest otherwise. On the other hand, Musk’s offhand mention of the possibility of significantly lengthening the payload fairing is likely aimed directly at government customers in both the civil and military spheres of space utilization. Time will tell, and it certainly will not hurt SpaceX or its customers if Fairing 2.0 is also considerably easier to recover and reuse.
Under consideration. We’ve already stretched the upper stage once. Easiest part of the rocket to change. Fairing 2, flying soon, also has a slightly larger diameter. Could make fairing much longer if need be & will if BFR takes longer than expected.
— Elon Musk (@elonmusk) February 12, 2018
Ultimately, it should come as no surprise that SpaceX would attempt to leverage this contract and the DoD’s interest in ways that might also facilitate the development of the company’s futuristic BFR rocket, intended to eventually take humans to the Moon, Mars, and beyond. As shown by both 2016 and 2017 iterations of the vehicle, it appears that SpaceX intends to use vertical integration to attach the spaceship (BFS) to the booster (BFR). While it’s unlikely that this Air Force contract will result in the creation of a vertical integration system that could immediately be applied to or replicated for BFS testing, the experience SpaceX would gain in the process of building something similar for the Air Force would be invaluable and essentially kill two birds with one stone.

While now outdated, SpaceX’s 2016 Mars rocket featured a giant crane used for vertical integration. BFR appears to use the same approach. (SpaceX)
Follow along live as I and launch photographers Tom Cross and Pauline Acalin cover these exciting proceedings live and in person.
Teslarati – Instagram – Twitter
Tom Cross – Twitter
Pauline Acalin – Twitter
Eric Ralph – Twitter
News
Tesla ruined other cars for me: one year Model Y ownership review
I picked up my Tesla Model Y one year ago, on August 30, and for roughly a year, I have had this vehicle prove to me that any other carmaker’s product is ruined for me forever.
One year and over 16,000 miles later, the Tesla Model Y is easily the best car I’ve ever had. Of course, everyone always says that about the car they currently drive, but for the longest time, I truly believed some of the other cars I drove — my 1998 Volkswagen Jetta K2, or my 2008 Ford Escape Hybrid — would never be topped.
Most of this was due to nostalgia, but dependability also played a role.
My Tesla has taken over the number one spot. Everyone I talk to about my car always has a lot of questions, and they’re usually the same ones that someone else asked me: “Is it really so cheap to drive?” “How much does it cost to charge?” “Does it really drive itself?” “How long is the warranty on your battery?”
I never mind answering those questions because it is an opportunity to educate someone on EVs. There are a lot of things about EVs that I hear from people, and I can’t help but chuckle at times. However, I hope this review clears some of those things up, because I truly want everyone to know how great this vehicle really is.
My brand new ride! Thank you @tesla @elonmusk for building one badass car
Officially a battery boy pic.twitter.com/jzpMawmTZs
— Joey Klender (@KlenderJoey) August 30, 2025
How my Tesla has changed my life
I was in two car accidents in high school, and I was a passenger in both. I am very happy I went through those as a teenager, because if I didn’t, I think I’d probably be much less aware of the road, how other drivers are so unbelievably unaware of others, and how inconsiderate most drivers are.
I’ve always considered myself a good driver because I was always taught to be defensive. Because of those two accidents, I am a tad jumpy in passenger seats, even with people like my parents, who drove me around for 16 years before I got my Learner’s Permit. On a drive home from Florida to Pennsylvania with my Dad two years ago, he actually told me at one point to “stop being so jumpy.”
Truth is, I trust my Dad behind the wheel more than anyone. But the older I’ve gotten, the more I just prefer to drive myself.
That is, until I met my Tesla and Full Self-Driving. I still remember the first drive I took after taking delivery: I immediately typed in my Fiancèe’s (my wife in 30 days!!!) favorite lunch spot, picked up her favorite meal, and pulled into the hospital where she delivers babies. I can remember thinking after 15 minutes, “Okay, that’s enough for me; I’ll drive manually now.”
Over the next 2-3 weeks, that length of time slowly but steadily increased. Every passing week, I got a tad more comfortable with the car driving me. Now, I have had FSD log 75% of my 13,000 miles since v14. I barely drive my car manually, and that’s exactly how I like it.
My Tesla has changed the way I drive and how I choose to travel.
🚨 Guys this is why you all NEED to stay vigilant behind the wheel, even on Tesla Full Self-Driving
Human drivers are UNHINGED and have no idea what they’re doing anymore. This was a kid obviously younger than 20 years old with zero awareness.
First drive with v14.3.7 https://t.co/1vTbCMpCn8 pic.twitter.com/lz7KKEF6bj
— TESLARATI (@Teslarati) August 2, 2026
In the past, I was always one of those anxious drivers, overly concerned about the parking situation, never wanting to drive in cities, and avoiding anything that made me a little uncomfortable when on the road. FSD has changed that completely.
Took my Fiancè and her friends to the airport this morning and my Model Y chose to bring me through the Inner Harbor during the morning commute
At least I got to see some fun stuff on my way home
I handled the city driving manually, FSD took care of the rest pic.twitter.com/7wcswtTUB0
— Joey Klender (@KlenderJoey) September 18, 2025
It has made traveling fun, driving less stressful, and parking a non-issue. I truly love this car and what it has done for me and my driving anxiety.
Maintenance and Cost Savings
A buddy of mine who took delivery of a Model Y right after me, also his first EV, texted me yesterday and said, “When do I take this thing for service? I don’t even know what it needs.”
This year I have spent $67.41 on service for my car:
- Free Front Camera Housing Cleaning
- $65 for a Tire Rotation at home from Tesla (easily avoidable if I just would have gone to a tire place or did it myself, but it was less than 20 degrees outside and the Service Tech did it at 7 am while I was asleep)
- $2.41 on a jug of Windshield Washer Fluid at Sheetz with my reward points
No spark plugs, no oil changes, no anything. Combine it with what you save on charging at home, and my ownership experience overall has been relatively cheap. I pay no more than I did for my Bronco for the car payment (around $400 per month), and my insurance went up about $60, but within the first four months I was given a safe driving discount by my agent. This brought it to about a $40 increase.
Now let’s factor in what I’ve saved in gas for the year:
Writing my 1 year Model Y ownership review and here’s my charging states for the year. April is when I started charging at home. Crazy to think how much I would have saved on charging if I would have been doing that all along pic.twitter.com/cpuSNop63G
— TESLARATI (@Teslarati) September 10, 2026
According to my Charge Stats in the Tesla App, I’ve saved $836 over the course of the year by driving a Tesla over an ICE vehicle. If you look at the graph, you’ll notice my Supercharger utilization dropped significantly in April, which makes sense.
This is when I started charging at home. Those savings would likely be closer to $1,500 if I had been charging at home all along.
Real-World Range
I never reset any Trip on my Tesla when I bought it, so all of these efficiency stats are for the life of the vehicle thus far through 16,063 miles.
My Tesla has a lifetime average of 260.1 Wh/mi (watt-hours per mile), which equates to 3.84 mi/kWh (miles per kilowatt-hour). This is pretty average, and I know I could be more efficient, but I use climate control liberally (it’s always on, even if the windows are down), and I love to let FSD drive me around in Hurry Mode.
Even when I’m driving manually, it’s because I’m on a dry, windy road and I want to take advantage of the awesome suspension and damping that the Model offers. Driving that car on a back road with some twists is one of the most fun things to do.
To achieve really excellent range and efficiency ratings, you really have to be more conservative with some things, and those are sacrifices I’m personally not willing to make. I want the A/C or Heat on, and I occasionally will increase drag by driving with the windows down.
I prefer Hurry mode on FSD, and I’m willing to sacrifice a few miles of range for that certain style of driving.
Interior, Visibility, Accessories, and More
My Favorite Interior Ever
The Model Y interior, like every Tesla interior, is not for everyone. Personally, I was never a fan of the minimalistic approach prior to ownership. As ridiculous as it is, I liked a simple knob for adjusting the temperature and fan speed. Even so, to this day, it takes me longer to pull up the climate settings to adjust things in my Tesla than it ever did in cars with a million knobs and buttons.
I can’t tell you how many times my finger has missed the On/Off button on the climate screen in the Model Y because of dips, bumps, turns, and just normal movement during operation. Do I like the way things are controlled in my Tesla? Yes, of course. Plus, Grok is so integrated into the car now that I could truly never have to touch the screen again for anything other than starting Self-Driving.
🚨 Using Grok to control the cabin temperature and turn on headlights in 2026 Model Y on FSD v14.3.8 and 2026.26.6.5 pic.twitter.com/7clgQkGABk
— TESLARATI (@Teslarati) August 27, 2026
However, I still find that there are valid arguments for people who like knobs and buttons. As ugly as it might be to me now, I think it is a tad more intuitive because it’s much harder to miss and much easier to make a quick adjustment than with a touchscreen.
With that being said, the touchscreen is great. It is so responsive and is as good as using an iPhone. There is no delay like most automotive touchscreens, where it feels sort of clunky for 2026.
I love to watch TV and Movies or YouTube on it when I’m parked anywhere. My Fiancèe and I have made it a date night several times over the past year: we’ll pick a spot to eat, get it to go, and enjoy it in the car while watching something. It’s great in the Fall when the leaves are turning orange.
The interior is, overall, a great part of the car. It’s very easy to keep clean, and when it’s clean, it truly feels like you’re in a spacecraft. It is one of the coolest interiors out there, maybe not as luxurious as some high-end Mercedes-Benz or BMW models, but it has a clean and simple feel that is better than many cars in its weight class.
I will say I do miss the Textile seats of the Model Y Standard, but I do not miss them when I am hot. I would still take the Vegan Leather because of the ventilated seats.
Rear Window Visibility is Pointless
If you like a rear windshield, just be aware of the fact that the Model Y basically does not have one. It almost feels pointless to be there, and the Model Y L has something that is much more “standard” in terms of rear windshields in a crossover/SUV:
This is a drastic difference. https://t.co/wTdhitD5aA pic.twitter.com/z6hFs0Jkss
— TESLARATI (@Teslarati) July 30, 2026
It doesn’t mean much to me because the rear camera is great. However, I have found myself just annoyed with the fact that it’s even there to begin with.
Accessories I Bought
I went for 3D MaxPider car mats throughout, some center console storage, trunk storage, and matching window tint on the front windows. I also bought Tesla’s Pet Liner, which is great because it comes with door coverage and a bit of a barrier. My pup, Finn, climbs right over it and prefers the front seat, so I fold it in half, and it still covers the passenger seat very well:
🚨 Something’s different about my best friend Finn in this video compared to the last…🐾🐶
Watch our full ride home from Finn’s haircut on Tesla FSD v14.3.8 https://t.co/eyrj1QefAj pic.twitter.com/f04jVIBgMV
— TESLARATI (@Teslarati) September 8, 2026
They’re all pretty standard accessories, but the one thing I use the most is actually this phone mount from Amazon.
It’s great for making FSD content for TikTok or throwing my phone on it just to hold. I never use it to watch anything (I’m wildly against that concept), and I usually use the wireless charging mat that comes standard. It is really great and convenient, and the magnet is super strong.
Cabin Noise, Sound System Quality
The Model Y Premium comes with acoustic-lined glass, which really dampens a lot of the road noise. My car has one of the quieter cabins I’ve ever been in. I can still remember my 2008 Escape Hybrid and how loud it was in there; I thought my Tesla would be that way, but boy was I wrong.
It is such a peaceful ride that even sitting at stoplights behind loud, obnoxious Hondas with shopping cart handles as spoilers does not bother me. A buddy of mine in a 2021 Model Y said upon his first ride in my car that it was a “night and day” difference between the two.
As far as the sound system goes, two of the more outgoing people in my life who love loud music and concerts recently said to me that “the Tesla is quite a time” because of how immersive the listening experience is. The bass is excellent; the ambient lighting truly rounds out the experience.
Even my Dad, who is somewhat of a speaker snob (I can remember going to Tweeter as a boy with him to look at receivers, and he’s always had massive speakers in the house for cranking up some music) has commented on how good the sound quality is. I remember when I bought a Honda Civic a few years ago- his first ride in it- he said, “Damn, the speakers in here suck.”
He wasn’t wrong. They were awful. But in the Tesla, they’re damn good.
Should you buy a Model Y?
Look, I will recommend this car to anyone who asks. I tell my friends constantly that I love my Model Y so much, especially because it just gets better and better over time.
But I also understand the skepticism. I’ll admit one of the most disappointing things about this car is how much range I lose in the winter. In a 40-mile round-trip drive to get wings with some friends in January, I lost 120 miles of range. This is something that would not deter me from buying this car, but at the time, I also didn’t have home charging. Ownership, at that point, was a bit of a pain in the butt.
The thing is, to me, it’s still better than driving a gas car. I just have more fun in a Tesla.
A friend of mine recently bought a new car, and she said she went with a Chevy Equinox because it was a larger vehicle and she has a child. I told her, “I don’t think I’ll ever buy anything other than a Tesla. Once you go Tesla, you never go back.”
“I cannot afford a Tesla,” she said. We all know the ridiculous narrative around Tesla pricing by now, and after she found out how much I pay for my car and the fact that it has the IIHS Top Safety Pick+ rating, she admitted she probably would have done the same if she had known. I wish she would have asked.
The only car I would take over mine is the Cybertruck. And right now, I just can’t afford a Cybertruck, so I’ll stick with the Model Y. I am so satisfied with my pick, and I would buy this car time and time again.
Elon Musk
Elon Musk rips ABC News over fatal NYC Tesla crash report
Musk pushed back on NYC Tesla crash coverage, pointing to a pattern of premature blame.
Elon Musk pushed back overnight against media framing of a fatal Tesla crash in Midtown Manhattan, telling a user on X that “it wasn’t the car” and that the vehicle’s Autopilot system had nothing to do with the wreck.
The crash happened just before 3 a.m. Wednesday, when a 2024 Tesla Model Y struck a sidewalk shed outside 315 Madison Ave., a bus stop pole and a mailbox on East 42nd Street, according to the NYPD. The car kept moving several more blocks before stopping near Second Avenue. Both women inside, each 27, were taken to Bellevue Hospital, where the passenger was pronounced dead. The driver was charged with vehicular manslaughter, driving while ability impaired and leaving the scene of an accident.
Police have not attributed the crash to Autopilot or Full Self-Driving in any public statement. The charges point to impairment, not software. Musk’s response followed a since-deleted ABC News post that he said mischaracterized the incident. Replying to a user on X, Musk wrote that if Autopilot had been engaged, “they would not have crashed,” and added that “the legacy media will never forgive Tesla for failing to advertise with them,”
The legacy media will never forgive Tesla for failing to advertise with them
— Elon Musk (@elonmusk) September 9, 2026
It’s a familiar cycle for Tesla. In June, headlines from several national outlets described a fatal crash in Katy, Texas, as happening while the car was “on autopilot,” based on the driver’s own account to police after his Model 3 struck a home and killed a 76-year-old woman. Tesla’s data told a different story when Ashok Elluswamy, Tesla’s head of AI, said the driver had pressed the accelerator to 100% and reached 73 mph in a residential zone. Harris County prosecutors later confirmed the human override and the driver was charged with manslaughter.
Florida Gov. Ron DeSantis pointed to that same Katy crash last month to argue that outlets routinely name Tesla in crash headlines while leaving other automakers unnamed, even after a driver’s own actions are shown to be the cause. A similar pattern played out in 2024, when Musk had to clarify that FSD was never even downloaded onto the Model 3 involved in a fatal Colorado DUI crash, despite a passenger’s claim that an “auto drive feature” was in use.
Tesla has not issued a separate statement on the Manhattan crash beyond Musk’s posts on X. The NYPD’s investigation is ongoing, and no cause for the driver losing control has been released.
News
Tesla’s two defunct flagship models are getting a big upgrade
Tesla’s two recently-defunct flagship models, the Model S and Model X, are getting a big upgrade, according to the company’s Head of AI, Ashok Elluswamy.
Older Hardware 3 Model S and Model X vehicles have been the last major holdouts in Tesla’s Full Self-Driving v14 Lite rollout, and that wait now appears to be ending.
Tesla brings closure to flagship ‘sentimental’ models, Musk confirms
At Tesla’s Cybercab launch, AI chief Ashok Elluswamy told Ryan McCaffrey that he thought the S and X build “was supposed to go out last week.” Evidently, Elluswamy expects the suite to be rolled out to those HW3 Model S and Model X very soon:
For my @Tesla friends – and specifically Model S & X owners with HW3 who are waiting on FSD v14 Lite – I spoke to @aelluswamy at the Cybercab launch, & when I asked for an ETA on v14 Lite for S/X owners, he said, “Oh, I thought it was supposed to go out last week.”
So: soon! 🙌
— Ryan McCaffrey (@DMC_Ryan) September 7, 2026
Those cars are not the current Model S and Model X, which already ship with Hardware 4. They are the pre-refresh flagships built around Tesla’s older Autopilot computer, often called HW3 or AI3.
Tesla stopped putting that computer in new vehicles years ago, which is why owners treat these S and X cars as a closed generation. Model 3 and Model Y vehicles on the same computer began receiving v14 Lite in late June 2026 and saw a wider North American expansion in July. South Korea followed as an early international market. The S and X versions of the same software never joined that wave.
v14 Lite is Tesla’s way of squeezing the current v14 driving stack onto hardware that cannot run the full AI 4 model. The company describes the process as distillation: behaviors learned on the newer computer, including reinforcement learning and offline models, are compressed so the older chip and cameras can use them as a guide.
Early descriptions put the distilled network at roughly 15 percent of the original size. The result is still supervised Level 2 driving. Tesla has been clear that HW3 cannot support unsupervised Full Self-Driving or robotaxi operation because of memory and bandwidth limits.
The feature list is what made the wait so frustrating for S and X owners, as plenty of new features are to be shipped with it.
Official notes for the first Lite build, firmware 2026.20.5.1, added parking, unparking, and reversing; arrival options for a parking lot, street, driveway, or curbside; speed profiles that stay available at all times; and start-from-park engagement. Tesla also claimed better handling of merges, forks, pedestrians, traffic lights, and cut-ins, plus fewer false slowdowns and smoother lane centering.
A mid-July follow-on build, 2026.20.6.10, added more of the Hardware 4 interface, including a standalone Self-Driving app and the ability to start a trip from Park without a brake-pedal confirmation.
Elluswamy called that version the one “likely going to wide release.”
That wide release already reached most other HW3 cars in the United States and Canada. International timing still depends on regional validation and regulatory approval. For S and X owners, the remaining work appears to be model-specific validation rather than a new software stack.
There is no official Tesla changelog or build number for those two models yet, only Elluswamy’s offhand timeline. Some HW3 drivers who already have Lite report large gains over v12.6; others have described new indecision or phantom braking. The next test will be whether the same software lands cleanly on the older flagships that have waited the longest.








