After more than a decade of flirting with the idea, Apple has finally discontinued the Mac Pro tower. The company confirmed to 9to5Mac that the latest Mac Pro iteration—an M2 Ultra model first released in mid-2023—would be its last, at least for the time being. There are no plans to make another Mac Pro.

The discontinuation of the Mac Pro should come as no surprise to anyone who has been paying attention. Reporting from late last year suggested that the Mac Pro had been put “on the back burner,” but the desktop has clearly been in danger of falling off the stove since at least the mid-2010s, during the six-year period where the controversial cylindrical “trash can” Mac Pro design languished without updates.

Apple briefly rededicated itself to its pro desktop in 2019 with a new design that hearkened back to more versatile, upgradeable, be-handled versions of the Power Mac and Mac Pro. But by the time it was updated again with M2 Ultra four years later, it was already clear that the idea of a huge and expandable Mac desktop was out of step with the Apple Silicon era. The desktop’s demise confirms that, at least in Apple’s estimation, the Mac Pro was trying to fill a niche that no longer exists.

The Mac Pro is survived by the M4 Max and M3 Ultra versions of the Mac Studio desktop, as well as by the M4 Pro Mac mini. It was preceded in death by the 27-inch iMac (2009–2020) and the iMac Pro (2017–2017).

The fourth quadrant

When Steve Jobs returned to lead Apple in 1997, one of his early initiatives was to streamline and refocus the Mac product family, which at that point had grown into a sprawling and poorly differentiated maze of Quadras, Performas, Power Macintoshes, and even third-party systems. The initial focus was a lineup of four computers to serve four market quadrants: a consumer laptop, a consumer desktop, a more powerful professional laptop, and a professional desktop.

https://arstechnica.com/gadgets/2026/03/apple-has-finally-discontinued-the-mac-pro-desktop-after-years-of-fitful-effort/

For about four years now, AMD has offered special “X3D” variants of its high-end desktop processors with an extra 64MB of L3 cache attached, an addition that disproportionately benefits games. AMD calls this “3D V-Cache” because it stacks the cache directly on top of (for Ryzen 5000 and 7000) or beneath (for Ryzen 9000) the CPU die.

The 12- and 16-core Ryzen chips have their CPU cores split between two silicon chiplets, which has historically made the 7900X3D, 7950X3D, 9900X3D, and 9950X3D a bit weird. One of their two CPU chiplets has the 64MB of 3D V-Cache attached, and one does not. AMD relies on its driver software to make sure that software that benefits from the extra cache is run on the V-Cache-enabled CPU cores, which usually works well but is occasionally error-prone.

Enter the Ryzen 9 9950X3D2 Dual Edition, a mouthful of a chip that includes 64MB of 3D V-Cache on both processor dies, without the hybrid arrangement that has defined the other chips up until now. This gives the chip a grand total of 208MB of cache—16MB of L2 cache, the 32MB of L3 cache built into each of the two CPU dies (for a total of 64MB), and then another 64MB chunk of 3D V-Cache per die. In total, AMD says the new chip should be as much as 10 percent faster than the 9950X3D in games and other apps that benefit from the extra cache.

https://arstechnica.com/gadgets/2026/03/amds-ryzen-9-9950x3d2-dual-edition-crams-208mb-of-cache-into-a-single-chip/

In its most recent earnings report, Netflix said its 2025 net income was about $11 billion, up from $8.7 billion in 2024. In an earnings call that took place on January 20, Spencer Adam Neumann, Netflix’s CFO, named pricing, membership growth, and a doubling of ad revenue as the key revenue drivers for 2026.

Netflix was expected to raise prices if it acquired Warner Bros. Discovery’s (WBD’s) movie studios and streaming businesses (especially if Netflix started offering HBO Max’s library), so some subscribers may be disappointed to see the streaming service getting more expensive despite the deal falling through in February.

Today’s price hike doesn’t seem directly tied to the shelved acquisition, based on statements made by Gregory K. Peters, Netflix’s president and director, during January’s earnings call. He said then that the planned WBD acquisition was having “no impact or change to our approach and how we’re running the business” in regard to pricing.

It’s still possible that Netflix may show more pricing stability moving forward compared to if it bought WBD’s film and streaming businesses.

But if that’s not enough solace, disappointed subscribers can always, as Netflix co-CEO Ted Sarandos said last month, “cancel with one click.”

https://arstechnica.com/gadgets/2026/03/netflix-increases-prices-for-all-plans-by-up-to-2-per-month/

“If you had Guardian playing a siren tone that was tuned to match the frequency of the speaker and a police car playing as the siren tone next to it, Guardian would be three times louder,” he said.

The Seattle-based BRINC makes drones currently used by over 900 American cities, including Laredo, Texas, and Chattanooga, Tennessee, as part of the growing “drone as first responder” (DFR) system.

Typically, cities pay a few hundred thousand dollars per year per drone—with contracts reaching into the millions with more drones and more capabilities. A year ago, Newport Beach, California, announced a $2.17 million, five-year contract with BRINC for seven drones. (According to Forbes, BRINC is valued at around $480 million as of last year.)

One existing customer, the Redmond Police Department in the state of Washington, told Ars that this new model was a “completely new and different airframe.”

“This is a huge step in DFR innovation and possibility,” emailed Jill Green, a police spokesperson.

Still, one longtime drone watcher and analyst, Faine Greenwood, wasn’t as taken with this news.

“Even if these claims are true (which I doubt at the moment), the speed/battery life is an incremental improvement over other comparable drone platforms,” Greenwood told Ars by email. “This is not a game-changer situation, and I don’t see it as really changing the calculus for police who are on the fence about drones.”

https://arstechnica.com/gadgets/2026/03/brincs-new-police-drone-uses-starlink-carries-narcan-chases-vehicles-at-60mph/

Reddit will require accounts that exhibit “automated or otherwise fishy behavior” to verify that a human runs them, Reddit CEO Steve Huffman said in a Reddit post today. The verification process aims to combat unwanted bots from flooding Reddit at a time when AI bots are poised to take over the Internet.

“As AI becomes a bigger part of the Internet, we want to make sure that when you’re on Reddit, you know when you’re talking to a person and when you’re not,” Huffman said.

Human verification will only occur if Reddit suspects that an account is a bot. This is “rare” and won’t apply to “most users,” Huffman emphasized. If the account cannot prove that it’s human, it “may be restricted,” he said.

Reddit will check if an account is run by a human by using third-party tools that Huffman said won’t expose users’ true identity, Reddit username, or Reddit activity. Current methods that Reddit is exploring include passkeys, which Huffman said are a great starting point but don’t provide any “proof of individuality or anything other than ‘a human probably did something.’”

Reddit is also looking into third-party biometric services, like World ID, which uses iris-scanning tech.

“I think the Internet needs verification solutions like this, where your account information, usage data, and identity never mix,” Huffman said.

A last resort may be third-party government ID services, which Reddit is already required to use in some geographies, like the UK. Huffman said this is “the least secure, least private, and least preferred” method for human verification on Reddit.

“When we are forced to do this, we design the integrations so that we never actually see your ID information, so your Reddit data cannot be tied to you,” he added.

https://arstechnica.com/gadgets/2026/03/reddit-will-require-fishy-accounts-to-verify-they-are-run-by-a-human/

AI skeptics may also be cheered to hear that the company is pumping the brakes on Copilot, which has made its way into everything from the keyboard to the humble notepad.exe over the last few years (even as the standalone Copilot app’s appearance and capabilities have changed pretty dramatically from iteration to iteration). Davuluri said Microsoft would be “more intentional” about where Copilot appears and how it works and specifically promised to “[reduce unnecessary Copilot entry points, starting with apps like Snipping Tool, Photos, Widgets, and Notepad.”

Davuluri also said Microsoft would begin testing less-disruptive Windows updates that would give users more opportunities to (temporarily) skip them; a “faster and more dependable File Explorer,” “quieter defaults” for the Widgets pane, and better descriptions for the various Windows Insider Program channels and improved mechanisms for sending feedback to Microsoft.

Beyond these specific short-term changes, Davuluri also listed a broader laundry list of goals, including more reliable operation for Bluetooth and USB peripherals, faster and more accurate search, reduced memory usage, and improving responsiveness and performance for bedrock Windows components like the Start menu, taskbar, and File Explorer.

These are all nice-sounding promises, though the specifics will matter a lot—being “more intentional” about Copilot, for example, still leaves room for Microsoft to intentionally force it into each and every one of Windows’ built-in apps. And one major annoyance, the mandatory Microsoft Account sign-in requirement, isn’t mentioned anywhere in this post. But Microsoft at least seems to be moving in the right direction.

Windows 10 has remained enduringly popular despite its October 2025 end-of-support date, and one year of additional free-ish security updates has given people who want to keep Windows 10 a way to do so without exposing themselves to security holes. But we’re already nearly halfway through that year, which means a Windows 11 upgrade is probably in your future one way or another. Hopefully, Microsoft’s repeatedly professed commitment to quality means the OS will be more welcoming by the time October rolls around.

https://arstechnica.com/gadgets/2026/03/microsoft-keeps-insisting-that-its-deeply-committed-to-the-quality-of-windows-11/

AI integration is a “key focus” of Transformer, per Reuters’ sources, who said that Amazon wants the phone to drive usage of Amazon’s AI products. The phone may use AI in lieu of app stores, the sources said, similar to the Light Phone, which the Transfomer development team is taking “inspiration” from, Reuters said, citing two of its sources.

Reuters’ report doesn’t explicitly mention “Alexa+,” the generative AI version of Alexa, but the subscription-based assistant would likely be central to Transformers’ reported goals.

Fire Phone, take two

Amazon’s reported attempts to develop a new smartphone come at an interesting time. It’s been about 11 years since Amazon killed the FireOS-based Fire Phone, which sold for only about a year before it was discontinued due to poor sales. Meanwhile, Amazon’s devices division has reportedly struggled financially for years, largely because Alexa-based devices have failed to generate revenue.

A return to smartphones would pit Amazon against Apple and Samsung, which dominate the market and bring years of app ecosystems, hardware innovation, AI development, and loyal fanbases.

It’s unclear why Amazon thinks now is a good time to get back into phones. Even potentially low prices may not be enough to convince people to buy.

https://arstechnica.com/gadgets/2026/03/amazon-is-reportedly-developing-an-ai-centric-smartphone/

One of the key improvements for the Steam Machine and other desktop hardware is “greatly improved video memory management with discrete GPU platforms.” When we tested SteamOS on a range of generic PC hardware last year, we found that GPUs with 8GB of RAM could perform a lot worse in SteamOS than in Windows—a big issue for Valve since the Steam Machine is shipping with a Radeon RX 7600-caliber GPU that has 8GB of video memory.

We didn’t run into the same performance problems with 16GB GPUs or with integrated graphics that let games dynamically grab as much system memory as they need. We’ll need to run tests with this new SteamOS update to see whether and how much the situation has improved.

Other changes made with the Steam Machine in mind (but which should also benefit anyone rolling their own Steam Machine at home) include improved HDMI audio support, fixes for performance issues that affected Desktop Mode specifically, better support for HDR and variable refresh-rate displays, better default scaling behavior on TV screens, better support for rotated screens, and the ability to set different scaling modes for different screens in a multi-monitor setup.

We think the Steam Machine will be the most interesting as a console-like computer you connect to your TV, but Valve clearly expects that some users will want to use the system more like a traditional desktop PC, too.

People running a version of SteamOS 3.7 can get the new SteamOS 3.8 preview update by opening Settings, then System, and switching the System Update Channel to “Preview.”

Valve has said it still hopes to launch the Steam Machine in the first half of the year, but the company hasn’t announced specific details on pricing or availability.

https://arstechnica.com/gadgets/2026/03/major-steamos-update-adds-support-for-steam-machine-even-more-third-party-hardware/

The dream of the metaverse may have died for now, but Meta has decided it’s not completely giving up on the VR experience in Horizon Worlds, the virtual worlds service that it originally envisioned as the first step toward said metaverse.

The news was announced via the Instagram account of Meta CTO Andrew Bosworth. “We have decided, just today in fact, that we will keep Horizon Worlds working in VR,” said Bosworth in an AMA on the platform in response to someone who expressed disappointment at the previously announced plan to end support.

He went on to clarify that only games and experiences that already support VR will continue to do so, while new games will be exclusive to mobile, and the majority of the team’s development focus will be on mobile instead of VR.

In February, Meta announced that it would be “shifting the focus of Worlds to be almost exclusively mobile.” It also announced changes to how its marketplace for VR software works, putting all the emphasis on supporting third-party developers in lieu of major first-party development. Meta had laid off 1,000 employees of its Reality Labs division in January, mostly by shuttering teams that were making first-party software and content for the company’s Quest VR headsets.

https://arstechnica.com/gadgets/2026/03/at-the-last-minute-meta-decides-not-to-kill-horizon-worlds-vr-after-all/

“Some products marketed as ‘QLED’ use conventional backlight architectures (standard phosphors, optical films, diffuser plates) and rely on picture modes or software tuning to create a more saturated ‘vivid’ look,” a January whitepaper by TÜV Rheinland and QD supplier Nanosys reads. The whitepaper, “Re-defining a ‘true’ Quantum Dot Display,” also points to devices that have QD material at “trace levels, or in packaging and integration designs that limit excitation and light extraction of certain wavelengths.”

“In these cases, the display may still achieve competitive headline gamut coverage, yet the measurable optical signature of an effective QD system is absent or minimal,” the whitepaper says. “The spectrum, color, volume behavior at high luminance, chromaticity stability, and temporal response can remain similar to those of non-QD LCD solutions.”

For now, the German ruling brings needed scrutiny to “QLED” and other potentially misleading display terms.

A clear understanding of what constitutes QD displays is also essential for QD-OLED displays and will only become more important if true quantum dot electroluminescent displays ever take off. (These displays, using a backlight-free technology, are also known as QDEL or QD-LED.)

“A quantum dot display should be defined by a combination of measurable material concentration and TV performance outcomes in terms of color purity, color gamut et cetera. Ideally, in a way that is understandable by consumers,” Virey said.

TÜV Rheinland and Nanosys’ whitepaper argues that QD displays should meet certain performance requirements that go beyond color gamut: “The display must deliver the optical advantages associated with quantum dots, including spectral precision, tunability and stability, improved color accuracy behavior across luminance (not just a single 2D gamut number), and, where applicable, temporal performance under backlight modulation.”

With TV marketing remaining murky—and often misleading—digging into detailed performance reviews remains the most reliable way to gauge how a display might perform in the real world.

https://arstechnica.com/gadgets/2026/03/tcls-german-qled-ban-puts-pressure-on-tv-brands-to-be-more-honest-about-qds/