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An anonymous reader quotes a report from Bloomberg: Beijing has urged local companies to avoid using Nvidia's H20 processors, particularly for government-related purposes, complicating the chipmaker's return to China after the Trump administration reversed an effective US ban on such sales. Over the past few weeks, Chinese authorities have sent notices to a range of firms discouraging use of the less-advanced semiconductors, people familiar with the matter said. The guidance was particularly strong against the use of H20s for any government or national security-related work by state enterprises or private companies, said the people, who asked not to be identified because the information is sensitive. The letters didn't, however, constitute an outright ban on H20 use, according to the people. Industry analysts broadly agree that Chinese companies still covet those chips, which perform quite well in certain crucial AI applications. President Donald Trump said Monday that the processor "still has a market" in the Asian country despite also calling it "obsolete." Beijing's stance could limit Trump's ability to turn his export control about-face into a windfall for government coffers, a deal that highlighted his administration's transactional approach to national security policies long treated as nonnegotiable. Still, Chinese companies may not be ready to jump ship to local semiconductors. "Chips from domestic manufacturers are improving dramatically in quality, but they might not be as versatile for specific workloads that China's domestic AI industry hopes to focus on," said Homin Lee, a senior macro strategist at Lombard Odier in Singapore. Lee added that he anticipates "strong" demand for the chips the Trump administration is allowing Nvidia and AMD to sell. Rosenblatt Securities analyst Kevin Cassidy said he doesn't anticipate that Nvidia's processor sales to China will be affected because "Chinese companies are going to want to use the best chips available." Nvidia and AMD's chips are superior to local alternatives, he said. Beijing asked companies about that issue in some of its letters, according to one of the people, posing questions such as why they buy Nvidia H20 chips over local versions, whether that's a necessary choice given domestic options, and whether they've found any security concerns in the Nvidia hardware. The notices coincide with state media reports that cast doubt on the security and reliability of H20 processors. Chinese regulators have raised those concerns directly with Nvidia, which has repeatedly denied that its chips contain such vulnerabilities. The Financial Times reported that some Chinese companies are planning to decrease orders of Nvidia chips in response to the letters. Right now, the people said, China's most stringent chip guidance is limited to sensitive applications, a situation that bears similarities to the way Beijing restricted Tesla vehicles and Apple iPhones in certain institutions and locations over security concerns. China's government also at one point barred the use of Micron Technology Inc. chips in critical infrastructure. It's possible that Beijing may extend its heavier-handed Nvidia and AMD guidance to a wider range of settings, according to one person with direct knowledge of the deliberations, who said that those conversations are in early stages.

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An anonymous reader shares a report: Can deleting old emails and photos help the UK tackle ongoing drought this year? That's the hope, according to recommendations for the public included in a press release today from the National Drought Group. There are far bigger steps companies and policymakers can take to conserve water of course, but drought has gotten bad enough for officials to urge the average person to consider how their habits might help or hurt the situation. And the proliferation of data centers is raising concerns about how much water it takes to power servers and keep them cool. "Simple, everyday choices -- such as turning off a tap or deleting old emails -- also really helps the collective effort to reduce demand and help preserve the health of our rivers and wildlife," Helen Wakeham, Environment Agency Director of Water, said in the press release.

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Google, Cisco, and McKinsey have reintroduced in-person interviews to combat AI-assisted cheating in virtual technical assessments. Coda Search/Staffing reports client requests for face-to-face meetings has surged to 30% this year from 5% in 2024. A Gartner survey of 3,000 job seekers found 6% admitted to interview fraud including having someone else stand in for them, while the FBI has warned of thousands of North Korean nationals using false identities to secure remote positions at U.S. technology companies. Google CEO Sundar Pichai confirmed in June the company now requires at least one in-person round for certain roles to verify candidates possess genuine coding skills.

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Google is rolling out a new feature called "Preferred Sources" in the U.S. and India, which allows users to select their preferred choice of news sites and blogs to be shown in the Top Stories section of Google's search results. From a report: Enabling this feature means you will see more content from the sites you like, the company says. When users search for a particular topic, they will see a "star" icon next to the Top Stories section. They can tap on that icon and start adding sources by searching for them. Once you select the sources, you can refresh the results to see more content from your selected sources. Google said that for some queries, users will also see a separate "From your sources" section below the Top Stories section.

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An anonymous reader shares a report: Microsoft is starting to roll out lightweight taskbar apps for Microsoft 365 users on Windows 11. These taskbar apps will automatically launch at startup and provide quick access to contacts, file search, and calendar straight from the Windows taskbar. The Microsoft 365 companion apps, as Microsoft calls them, are starting to roll out to business users of Microsoft 365 this month. The People companion provides a browsable org chart, as well as the ability to look up anyone in your company. You can also quickly start a Teams message or call with a contact, or email them directly.

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Microsoft has compiled a spreadsheet of Meta AI employees by name, location and position as part of an aggressive recruiting push to sustain its AI-driven march toward a $4 trillion market valuation, according to internal documents viewed by Business Insider. The company created a "critical AI talent" designation enabling top offers within 24 hours and mandated matching Meta's compensation packages, which OpenAI CEO Sam Altman says reach $100 million signing bonuses and recently hit $250 million total packages. Microsoft AI under Mustafa Suleyman and CoreAI under ex-Meta engineering boss Jay Parikh have deployed special recruiting teams making multimillion-dollar offers with multimillion-dollar on-hire bonuses, while the company maintains flat headcount after cutting thousands of employees this year.

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Australia's Federal Court ruled Tuesday that Apple and Google violated competition law through anti-competitive app store practices. Judge Jonathan Beach found both companies breached section 46 of the Competition and Consumer Act by misusing market power to reduce competition. The decision covers class actions representing 15 million consumers and 150,000 developers seeking compensation for inflated prices from 2017-2022, plus separate Epic Games cases. Apple's exclusive iOS App Store and mandatory payment system, along with Google's Play Store billing requirements, were ruled anti-competitive despite security justifications. Compensation amounts will be determined at subsequent hearings, with estimates reaching hundreds of millions of dollars.

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BPF programs are loaded directly into the kernel. Even though the verifier protects the kernel from certain kinds of misbehavior in BPF programs, some people are still justifiably concerned about adding unsigned code to their kernel. A fully correct BPF program can still be used to expose sensitive data, for example. To remedy this, Blaise Boscaccy and KP Singh have both shared patch sets that add ways to verify cryptographic signatures of BPF programs, allowing users to configure their kernels to load only pre-approved BPF programs. This work follows on from the discussion at the Linux Storage, Filesystem, Memory-Management, and BPF Summit (LSFMM+BPF) in April and Boscaccy's earlier proposal of a Linux Security Module (LSM) to accomplish the same goal. There are still some fundamental disagreements over the best approach to signing BPF programs, however.

AI startup Perplexity on Tuesday offered to purchase Google's Chrome browser for $34.5 billion as it works to challenge the tech giant's web-search dominance. From a report: Perplexity's offer is significantly more than its own valuation, which is estimated at $18 billion. The company told The Wall Street Journal that several investors including large venture-capital funds had agreed to back the transaction in full. Estimates of Chrome's enterprise value vary widely but recent ones have ranged from $20 billion to $50 billion. U.S. District Judge Amit Mehta is weighing whether to force Google to sell the browser as a means of weakening Google's stranglehold on web search. Mehta last year ruled that Google illegally monopolized the search market and is expected to rule this month on how to restore competition.

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Spirit Airlines has warned investors that it may go out of business, just months after exiting bankruptcy. From a report: In a quarterly report filed with the Securities and Exchange Commission on Monday, it said there was "substantial doubt" over its "ability to continue as a going concern within 12 months." The budget airline said it was harder to make money because of weak demand for domestic leisure travel and "elevated domestic capacity," meaning increased competition on such routes. Spirit reported a net loss of $245.8 million for the second quarter of 2025, up from a $192.9 million loss for the second quarter of 2024.

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The Arch Linux project is especially well-known in the Linux community for two things: its rolling-release model and the quality of the documentation in the ArchWiki. No matter which Linux distribution one uses, the odds are that eventually the ArchWiki's documentation will prove useful. The Debian project recognized this and has sought to improve its own documentation game by inviting ArchWiki maintainers Jakub Klinkovský and Vladimir Lavallade to DebConf25 in Brest, France, to speak about how Arch manages its wiki. The talk has already borne fruit with the launch of an effort to revamp the Debian wiki.

Elon Musk has threatened Apple with legal action over alleged antitrust violations related to rankings of the Grok AI chatbot app, which is owned by his AI startup xAI. From a report: "Apple is behaving in a manner that makes it impossible for any AI company besides OpenAI to reach #1 in the App Store, which is an unequivocal antitrust violation. xAI will take immediate legal action," Musk wrote in a post on his social media platform X. Apple declined to comment on Musk's threat. "Why do you refuse to put either X or Grok in your 'Must Have' section when X is the #1 news app in the world and Grok is #5 among all apps? Are you playing politics?" Musk said in another post.

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darwinmac writes: Firefox 141 rolled out a shiny new AI-powered smart tab grouping feature (it tries to auto-organize your tabs using a local model), but it turns out the local "Inference" process that powers it is acting like an energy-sucking monster. Users are reporting massive CPU spikes and battery drain and calling the feature "garbage" that's ruining their browsing experience.

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Version 1.3.0 of the Radicle distributed software forge system has been released. Changes this time around include canonical references, a new radicle-protocol crate, better log rotation, and more. (LWN looked at Radicle in 2024).

Security updates have been issued by AlmaLinux (kernel, kernel-rt, and python-requests), Debian (ca-certificates-java), Fedora (chromium, clash-meta, mingw-python3, openjpeg, php-adodb, and toolbox), Mageia (kernel and kernel-linus), SUSE (chromium, ImageMagick, libgcrypt, libssh, libxml2, opensc, postgresql14, and postgresql16), and Ubuntu (dnsmasq, linux-gcp-6.8, linux-raspi, linux-oracle-6.14, and openjdk-17).

Debian's GNU/Hurd team has announced the release of Debian GNU/Hurd 2025:

This is a snapshot of Debian "sid" at the time of the stable Debian "Trixie" release (August 2025), so it is mostly based on the same sources. It is not an official Debian release, but it is an official Debian GNU/Hurd port release. [...]

Debian GNU/Hurd is currently available for the i386 and amd64 architectures with about 72% of the Debian archive, and more to come!

See the FAQ and configuration guide for more on the GNU/Hurd port.

An anonymous reader quotes a report from MIT Technology Review: Physicists have created a new type of radar that could help improve underground imaging, using a cloud of atoms in a glass cell to detect reflected radio waves. The radar is a type of quantum sensor, an emerging technology that uses the quantum-mechanical properties of objects as measurement devices. It's still a prototype, but its intended use is to image buried objects in situations such as constructing underground utilities, drilling wells for natural gas, and excavating archaeological sites. [...] The glass cell that serves as the radar's quantum component is full of cesium atoms kept at room temperature. The researchers use lasers to get each individual cesium atom to swell to nearly the size of a bacterium, about 10,000 times bigger than the usual size. Atoms in this bloated condition are called Rydberg atoms. When incoming radio waves hit Rydberg atoms, they disturb the distribution of electrons around their nuclei. Researchers can detect the disturbance by shining lasers on the atoms, causing them to emit light; when the atoms are interacting with a radio wave, the color of their emitted light changes. Monitoring the color of this light thus makes it possible to use the atoms as a radio receiver. Rydberg atoms are sensitive to a wide range of radio frequencies without needing to change the physical setup... This means a single compact radar device could potentially work at the multiple frequency bands required for different applications. [Matthew Simons, a physicist at the National Institute of Standards and Technology (NIST), who was a member of the research team] tested the radar by placing it in a specially designed room with foam spikes on the floor, ceiling, and walls like stalactites and stalagmites. The spikes absorb, rather than reflect, nearly all the radio waves that hit them. This simulates the effect of a large open space, allowing the group to test the radar's imaging capability without unwanted reflections off walls.The researchers placed a radio wave transmitter in the room, along with their Rydberg atom receiver, which was hooked up to an optical table outside the room. They aimed radio waves at a copper plate about the size of a sheet of paper, some pipes, and a steel rod in the room, each placed up to five meters away. The radar allowed them to locate the objects to within 4.7 centimeters. The team posted a paper on the research to the arXiv preprint server in late June.

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Researchers at Kyushu University have developed a solid-oxide fuel cell that operates at just 300C, less than half the usual operating temperature. The team was able to do this by engineering a "ScO6 highway" in the electrolyte, allowing protons to move quickly without losing performance. "The team expects that their new findings will lead to the development of low-cost, low-temperature SOFCs and greatly accelerate the practical application of these devices," said the researchers in a press release. Interesting Engineering reports: "While SOFCs are promising due to their high efficiency and long lifespan, one major drawback is that they require operation at high temperatures of around 700-800C (1292F-1472F)," added the researchers in a press release. Such heat requires costly, specialized heat-resistant materials, making the technology expensive for many applications. A lower operating temperature is expected to reduce these manufacturing costs. The team's success comes from re-engineering the fuel cell's electrolyte, the ceramic layer that transports protons (hydrogen ions) to generate electricity. Previously, scientists faced a trade-off. Adding chemical dopants to an electrolyte increases the number of available protons but also tends to clog the material's crystal lattice, slowing proton movement and reducing performance. The Kyushu team worked to resolve this issue. "We looked for oxide crystals that could host many protons and let them move freely -- a balance that our new study finally struck," stated Yamazaki. They found that by doping two compounds, barium stannate (BaSnO3) and barium titanate (BaTiO3), with high concentrations of scandium (Sc), they could create an efficient structure. Their analysis showed that the scandium atoms form what the researchers call a "ScO6 highway." This structure creates a wide and softly vibrating pathway through the material. "This pathway is both wide and softly vibrating, which prevents the proton-trapping that normally plagues heavily doped oxides," explained Yamazaki. The resulting material achieves a proton conductivity of more than 0.01 S/cm at 300C, a performance level comparable to conventional SOFC electrolytes that run at more than double the temperature. The research has been published in the journal Nature Materials.

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After four weather-related delays, Amazon successfully launched 24 more Kuiper internet satellites aboard a SpaceX Falcon 9, bringing its total to 102. CNBC reports: SpaceX's Starlink is currently the dominant provider of low-earth orbit satellite internet, with a constellation of roughly 8,000 satellites and about 5 million customers worldwide. Amazon is racing to get more of its Kuiper satellites into space to meet a deadline set by the Federal Communications Commission. The FCC requires that Amazon have about 1,600 satellites in orbit by the end of July 2026, with the full 3,236-satellite constellation launched by July 2029. Amazon has booked up to 83 launches, including three rides with SpaceX. While the company is still in the early stages of building out its constellation, Amazon has already inked deals with governments as it hopes to begin commercial service later this year.

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An anonymous reader quotes a report from Ars Technica: In recent months, the AI industry has started moving toward so-called simulated reasoning models that use a "chain of thought" process to work through tricky problems in multiple logical steps. At the same time, recent research has cast doubt on whether those models have even a basic understanding of general logical concepts or an accurate grasp of their own "thought process." Similar research shows that these "reasoning" models can often produce incoherent, logically unsound answers when questions include irrelevant clauses or deviate even slightly from common templates found in their training data. In a recent pre-print paper, researchers from the University of Arizona summarize this existing work as "suggest[ing] that LLMs are not principled reasoners but rather sophisticated simulators of reasoning-like text." To pull on that thread, the researchers created a carefully controlled LLM environment in an attempt to measure just how well chain-of-thought reasoning works when presented with "out of domain" logical problems that don't match the specific logical patterns found in their training data. The results suggest that the seemingly large performance leaps made by chain-of-thought models are "largely a brittle mirage" that "become[s] fragile and prone to failure even under moderate distribution shifts," the researchers write. "Rather than demonstrating a true understanding of text, CoT reasoning under task transformations appears to reflect a replication of patterns learned during training." [...] Rather than showing the capability for generalized logical inference, these chain-of-thought models are "a sophisticated form of structured pattern matching" that "degrades significantly" when pushed even slightly outside of its training distribution, the researchers write. Further, the ability of these models to generate "fluent nonsense" creates "a false aura of dependability" that does not stand up to a careful audit. As such, the researchers warn heavily against "equating [chain-of-thought]-style output with human thinking" especially in "high-stakes domains like medicine, finance, or legal analysis." Current tests and benchmarks should prioritize tasks that fall outside of any training set to probe for these kinds of errors, while future models will need to move beyond "surface-level pattern recognition to exhibit deeper inferential competence," they write.

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