Microsoft is now prioritizing Anthropic's Claude 4 over OpenAI's GPT-5 in Visual Studio Code's auto model feature, signaling a quiet but clear shift in preference. The Verge reports: "Based on internal benchmarks, Claude Sonnet 4 is our recommended model for GitHub Copilot," said Julia Liuson, head of Microsoft's developer division, in an internal email in June. While that guidance was issued ahead of the GPT-5 release, I understand Microsoft's model guidance hasn't changed.

Microsoft is also making "significant investments" in training its own AI models. "We're also going to be making significant investments in our own cluster. So today, MAI-1-preview was only trained on 15,000 H100s, a tiny cluster in the grand scheme of things," said Microsoft AI chief Mustafa Suleyman, in an employee-only town hall last week.

Microsoft is also reportedly planning to use Anthropic's AI models for some features in its Microsoft 365 apps soon. The Information reports that the Microsoft 365 Copilot will be "partly powered by Anthropic models," after Microsoft found that some of these models outperformed OpenAI in Excel and PowerPoint.

An anonymous reader quotes a report from TechCrunch: Carla Rover once spent 30 minutes sobbing after having to restart a project she vibe coded. Rover has been in the industry for 15 years, mainly working as a web developer. She's now building a startup, alongside her son, that creates custom machine learning models for marketplaces. She called vibe coding a beautiful, endless cocktail napkin on which one can perpetually sketch ideas. But dealing with AI-generated code that one hopes to use in production can be "worse than babysitting," she said, as these AI models can mess up work in ways that are hard to predict.

She had turned to AI coding in a need for speed with her startup, as is the promise of AI tools. "Because I needed to be quick and impressive, I took a shortcut and did not scan those files after the automated review," she said. "When I did do it manually, I found so much wrong. When I used a third-party tool, I found more. And I learned my lesson." She and her son wound up restarting their whole project -- hence the tears. "I handed it off like the copilot was an employee," she said. "It isn't."

Rover is like many experienced programmers turning to AI for coding help. But such programmers are also finding themselves acting like AI babysitters -- rewriting and fact-checking the code the AI spits out. A recent report by content delivery platform company Fastly found that at least 95% of the nearly 800 developers it surveyed said they spend extra time fixing AI-generated code, with the load of such verification falling most heavily on the shoulders of senior developers. These experienced coders have discovered issues with AI-generated code ranging from hallucinating package names to deleting important information and security risks. Left unchecked, AI code can leave a product far more buggy than what humans would produce.

Working with AI-generated code has become such a problem that it's given rise to a new corporate coding job known as "vibe code cleanup specialist." TechCrunch spoke to experienced coders about their time using AI-generated code about what they see as the future of vibe coding. Thoughts varied, but one thing remained certain: The technology still has a long way to go. "Using a coding co-pilot is kind of like giving a coffee pot to a smart six-year-old and saying, 'Please take this into the dining room and pour coffee for the family,'" Rover said. Can they do it? Possibly. Could they fail? Definitely. And most likely, if they do fail, they aren't going to tell you. "It doesn't make the kid less clever," she continued. "It just means you can't delegate [a task] like that completely." Further reading: The Software Engineers Paid To Fix Vibe Coded Messes

TIOBE attempts to calculate programming language popularity using the number of skilled engineers, courses, and third-party vendors.

And the eight most popular languages in September's rankings haven't changed since last month:

1. Python
2. C++
3. C
4. Java
5. C#
6. JavaScript
7. Visual Basic
8. Go

But by TIOBE's ranking, Perl is still the #10 most-popular programming in September (dropping from #9 in August). "One year ago Perl was at position 27 and now it suddenly pops up at position 10 again," marvels TIOBE CEO Paul Jansen. The technical reason why Perl is rated this high is because of its huge number of books on Amazon. It has 4 times more books listed than for instance PHP, or 7 times more books than Rust. The underlying "real" reason for Perl's increase of popularity is unknown to me. The only possibility I can think of is that Perl 5 is now gradually considered to become the real Perl... Perl 6/Raku is at position 129 of the TIOBE index, thus playing no role at all in the programming world. Perl 5 on the other hand is releasing more often recently, thus gaining attention.
An article at the i-Programmer blog thinks Perl's resurgence could be from its text processing capabilities: Even in this era of AI, everything is still governed by text formats; text is still the King. XML, JSON calling APIs, YAML, Markdown, Log files..That means that there's still need to process it, transform it, clean it, extract from it. Perl with its first-class-citizen regular expressions, the wealth of text manipulation libraries up on CPAN and its full Unicode support of all the latest standards, was and is still the best. Simply there's no other that can match Perl's text processing capabilities.
They also cite Perl's backing by the open source community, and its "getting a 'proper' OOP model in the last couple of years... People just don't know what Perl is capable of and instead prefer to be victims of FOMO ephemeral trends, chasing behind the new and shiny."

Perl creator Larry Wall answered questions from Slashdot's readers in 2016. So I'd be curious from Slashdot's readers about Perl today. (Share your experiences in the comments if you're still using Perl -- or Raku...)

Perl's drop to #9 means Delphi/Object Pascal rises up one rank, growing from 1.82% in August to 2.26% in September to claim September's #9 spot. "At number 11 and 1.86%, SQL is quite close to entering the top 10 again," notes TechRepublic. (SQL fell to #12 in June, which the site speculated was due to "the increased use of NoSQL databases for AI applications.")

But TechRepublic adds that the #1 most popular programming language (according to TIOBE) is still Python: Perl sits at 2.03% in TIOBE's proprietary ranking system in September, up from 0.64% in January. Last year, Perl held the 27th position... Python's unstoppable rise dipped slightly from 26.14% in August to 25.98% in September. Python is still well ahead of every other language on the index.

"Freelance developers and entire companies are making a business out of fixing shoddy vibe coded software," writes 404 Media, interviewing one of the "dozens of people on Fiverr... now offering services specifically catering to people with shoddy vibe coded projects."

Hamid Siddiqi, who offers to "review, fix your vibe code" on Fiverr, told the 404 Media that "Currently, I work with around 15-20 clients regularly, with additional one-off projects throughout the year. ("Siddiqi said common issues he fixes in vibe coded projects include inconsistent UI/UX design in AI-generated frontends, poorly optimized code that impacts performance, misaligned branding elements, and features that function but feel clunky or unintuitive," as well as work o color schemes, animations, and layouts.)

And others coders are also pursuing the "vibe coded mess" market: Swatantra Sohni, who started VibeCodeFixers.com, a site for people with vibe coded projects who need help from experienced developers to fix or finish their projects, says that almost 300 experienced developers have posted their profiles to the site. He said so far VibeCodeFixers.com has only connected between 30-40 vibe code projects with fixers, but that he hasn't done anything to promote the service and at the moment is focused on adding as many software developers to the platform as possible...

"Most of these vibe coders, either they are product managers or they are sales guys, or they are small business owners, and they think that they can build something," Sohni told me. "So for them it's more for prototyping..." Another big issue Sohni identified is "credit burn," meaning the money vibe coders waste on AI usage fees in the final 10-20 percent stage of developing the app, when adding new features breaks existing features.

Sohni told me he thinks vibe coding is not going anywhere, but neither are human developers. "I feel like the role [of human developers] would be slightly limited, but we will still need humans to keep this AI on the leash," he said.
The article also notes that established software development companies like Ulam Labs, now say "we clean up after vibe coding. Literally."

"Built something fast? Now it's time to make it solid," Ulam Labs pitches on its site," suggesting that for their potential customers "the tech debt is holding you back: no tests, shaky architecture, CI/CD is a dream, and every change feels like defusing a bomb. That's where we come in."

Microsoft has eliminated the one-time fee for publishing apps on its Windows Store. According to The Verge, "Individual developers in nearly 200 countries can now sign up to publish apps on the Microsoft Store with just a personal Microsoft account, and no more one-time fees." From the report: Microsoft started cutting its $19 one-time fee to publish apps to its Windows store in June in certain markets, and it's now essentially removing this fee for all developers worldwide. Apple still charges an annual $99 fee to developers, and Google charges a one-time registration fee of $25.

"Developers will no longer need a credit card to get started, removing a key point of friction that has affected many creators around the world," explains Chetna Das, senior product manager at Microsoft. "By eliminating these one-time fees, Microsoft is creating a more inclusive and accessible platform that empowers more developers to innovate, share and thrive on the Windows ecosystem." [...]

The Microsoft Store is now used by more than 250 million monthly active users, according to Microsoft. Microsoft is now encouraging more developers to make use of the store, where they can publish a variety of Win32, UWP, PWA, .NET, MAUI, or Electron apps. Developers can even use their own in-app commerce system to keep 100 percent of their revenues on non-gaming apps.

Amid yesterday's news of Oracle's soaring stock, which propelled founder Larry Ellison to the top of the world's richest list, the Wall Street Journal reported that the cloud giant and OpenAI have struck one of the largest cloud contracts ever signed. Under the deal, OpenAI will purchase $300 billion worth of compute power from Oracle over roughly five years, with purchases beginning in 2027.

"This move away from Microsoft was timed with OpenAI's involvement with the Stargate Project, in which OpenAI, SoftBank, and Oracle have committed to invest $500 billion into domestic data center projects over the next four years," notes TechCrunch.

OpenAI also recently signed a cloud deal with Google. "The deal ... underscores the fact that the two are willing to overlook heavy competition between them to meet the massive computing demands," wrote analyst in Reuter's report.

Oracle shares had their best day since 1992, skyrocketing 36% and adding $244 billion in market value as surging AI-driven cloud demand pushed the company toward a $1 trillion valuation. The surge boosted founder Larry Ellison's fortune by $100 billion, making him the new world's wealthiest person. CNBC reports: The company said Tuesday after the bell that it has $455 billion in remaining performance obligations, up 359% from a year earlier. "This is a very historic kind of print right here from Oracle with this backlog," Ben Reitzes, technology research head at Melius Research, told CNBC's "Closing Bell: Overtime" on Tuesday. "The Street was looking for about $180 billion in RPO and they're talking about a number that is a multiple of that. That is astounding."

Oracle now sees $18 billion in cloud infrastructure revenue in fiscal 2026, with the company calling for the annual sum to reach $32 billion, $73 billion, $114 billion and $144 billion over the subsequent four years. Other analysts were left "blown away" and "in shock." D.A. Davidson's Gil Luria called it "absolutely staggering on CNBC's "Fast Money." Wells Fargo analysts said it was a "momentous confirmation" of the AI trade.

Oracle's cloud revenue projections overshadowed an otherwise lackluster fiscal first-quarter report in which the company missed expectations on the top and bottom lines. The company had earnings of an adjusted $1.47 per share for the quarter, just below the $1.48 per share expected by analysts polled by LSEG. Revenue for the first quarter came in at $14.93 billion, missing the $15.04 billion expected.

An anonymous reader quotes a report from Ars Technica: On Wednesday afternoon, Anthropic experienced a brief but complete service outage that took down its AI infrastructure, leaving developers unable to access Claude.ai, the API, Claude Code, or the management console for around half an hour. The outage affected all three of Anthropic's main services simultaneously, with the company posting at 12:28 pm Eastern that "APIs, Console, and Claude.ai are down. Services will be restored as soon as possible." As of press time, the services appear to be restored. The disruption, though lasting only about 30 minutes, quickly took the top spot on tech link-sharing site Hacker News for a short time and inspired immediate reactions from developers who have become increasingly reliant on AI coding tools for their daily work. "Everyone will just have to learn how to do it like we did in the old days, and blindly copy and paste from Stack Overflow," joked one Hacker News commenter. Another user recalled a joke from a previous AI outage: "Nooooo I'm going to have to use my brain again and write 100% of my code like a caveman from December 2024."

The most recent outage came at an inopportune time, affecting developers across the US who have integrated Claude into their workflows. One Hacker News user observed: "It's like every other day, the moment US working hours start, AI (in my case I mostly use Anthropic, others may be better) starts dying or at least getting intermittent errors. In EU working hours there's rarely any outages." Another user also noted this pattern, saying that "early morning here in the UK everything is fine, as soon as most of the US is up and at it, then it slowly turns to treacle." While some users criticized Anthropic for reliability issues in recent months, the company's status page acknowledged the issue within 39 minutes of the initial reports, and by 12:55 pm Eastern announced that a fix had been implemented and that the company's teams were monitoring the results.

Kevin Barry, founder and sole developer of Nova Launcher, has left parent company Branch Metrics after being told to stop work on both the launcher and an open-source release. While the app remains on Google Play, the launcher's website currently shows a 404 error. The Verge reports: Mobile analytics company Branch Metrics acquired Nova in 2022. The company's CEO at the time, co-founder Alex Austin, said on Reddit that if Barry were to leave Branch, "it's contracted that the code will be open-sourced and put in the hands of the community." Austin left Branch in 2023, and now with Barry officially gone from the company, too, it's unclear if the launcher will now actually be open-sourced.

"I think the newer leadership since Alex Austin left has put a different focus on the company and Nova simply isn't part of that focus in any way at all," Cliff Wade, Nova's former customer relations lead who left as part of the 2024 layoffs, tells The Verge. "It's just some app that they own but no longer feel they need or want." Wade also said that "I don't believe Branch will do the right thing any time soon with regards to open-sourcing Nova. I think they simply just don't care and don't want to invest time, unless of course, they get enough pressure from the community and individuals who care."

Users have started a change.org petition to ask for the project to be open-sourced, and Wade says it's a "great start" to apply that pressure. Wade said he hasn't personally seen Barry's contract, so couldn't corroborate the claim of a contractual obligation to open-source Nova. Still, he said that the community "deserves" for the launcher to be open-sourced. "Branch just simply needs to do the right thing here and honor what they as a company have stated as well as what then CEO Alex Austin has stated numerous times prior to him leaving Branch."

Slashdot reader Charlotte Web shared this report from the Register: Among the software developers who use Microsoft's GitHub, the most popular community discussion in the past 12 months has been a request for a way to block Copilot, the company's AI service, from generating issues and pull requests in code repositories. The second most popular discussion — where popularity is measured in upvotes — is a bug report that seeks a fix for the inability of users to disable Copilot code reviews. Both of these questions, the first opened in May and the second opened a month ago, remain unanswered, despite an abundance of comments critical of generative AI and Copilot...

The author of the first, developer Andi McClure, published a similar request to Microsoft's Visual Studio Code repository in January, objecting to the reappearance of a Copilot icon in VS Code after she had uninstalled the Copilot extension... "I've been for a while now filing issues in the GitHub Community feedback area when Copilot intrudes on my GitHub usage," McClure told The Register in an email. "I deeply resent that on top of Copilot seemingly training itself on my GitHub-posted code in violation of my licenses, GitHub wants me to look at (effectively) ads for this project I will never touch. If something's bothering me, I don't see a reason to stay quiet about it. I think part of how we get pushed into things we collectively don't want is because we stay quiet about it."

It's not just the burden of responding to AI slop, an ongoing issue for Curl maintainer Daniel Stenberg. It's the permissionless copying and regurgitation of speculation as fact, mitigated only by small print disclaimers that generative AI may produce inaccurate results. It's also GitHub's disavowal of liability if Copilot code suggestions happen to have reproduced source code that requires attribution. It's what the Servo project characterizes in its ban on AI code contributions as the lack of code correctness guarantees, copyright issues, and ethical concerns. Similar objections have been used to justify AI code bans in GNOME's Loupe project, FreeBSD, Gentoo, NetBSD, and QEMU... Calls to shun Microsoft and GitHub go back a long way in the open source community, but moved beyond simmering dissatisfaction in 2022 when the Software Freedom Conservancy (SFC) urged free software supporters to give up GitHub, a position SFC policy fellow Bradley M. Kuhn recently reiterated.
McClure says In the last six months their posts have drawn more community support — and tells the Register there's been a second change in how people see GitHub within the last month. After GitHub moved from a distinct subsidiary to part of Microsoft's CoreAI group, "it seems to have galvanized the open source community from just complaining about Copilot to now actively moving away from GitHub."

In July 791 professional coders were surveyed by Fastly about their use of AI coding tools, reports InfoWorld. The results?

"About a third of senior developers (10+ years of experience) say over half their shipped code is AI-generated," Fastly writes, "nearly two and a half times the rate reported by junior developers (0-2 years of experience), at 13%." "AI will bench test code and find errors much faster than a human, repairing them seamlessly. This has been the case many times," one senior developer said...

Senior developers were also more likely to say they invest time fixing AI-generated code. Just under 30% of seniors reported editing AI output enough to offset most of the time savings, compared to 17% of juniors. Even so, 59% of seniors say AI tools help them ship faster overall, compared to 49% of juniors. Just over 50% of junior developers say AI makes them moderately faster. By contrast, only 39% of more senior developers say the same.

But senior devs are more likely to report significant speed gains: 26% say AI makes them a lot faster, double the 13% of junior devs who agree. One reason for this gap may be that senior developers are simply better equipped to catch and correct AI's mistakes... Nearly 1 in 3 developers (28%) say they frequently have to fix or edit AI-generated code enough that it offsets most of the time savings. Only 14% say they rarely need to make changes. And yet, over half of developers still feel faster with AI tools like Copilot, Gemini, or Claude.

Fastly's survey isn't alone in calling AI productivity gains into question. A recent randomized controlled trial (RCT) of experienced open-source developers found something even more striking: when developers used AI tools, they took 19% longer to complete their tasks. This disconnect may come down to psychology. AI coding often feels smooth... but the early speed gains are often followed by cycles of editing, testing, and reworking that eat into any gains. This pattern is echoed both in conversations we've had with Fastly developers and in many of the comments we received in our survey...

Yet, AI still seems to improve developer job satisfaction. Nearly 80% of developers say AI tools make coding more enjoyable... Enjoyment doesn't equal efficiency, but in a profession wrestling with burnout and backlogs, that morale boost might still count for something.
Fastly quotes one developer who said their AI tool "saves time by using boilerplate code, but it also needs manual fixes for inefficiencies, which keep productivity in check."

The study also found the practice of green coding "goes up sharply with experience. Just over 56% of junior developers say they actively consider energy use in their work, while nearly 80% among mid- and senior-level engineers consider this when coding."

Announced this week at RustConf 2025 in Seattle, the new Rust Innovation Lab will offer open source projects "the opportunity to receive fiscal sponsorship from the Rust Foundation, including governance, legal, networking, marketing, and administrative support."

And their first project will be the TLS library Rustls (for cryptographic security), which they say "demonstrates Rust's ability to deliver both security and performance in one of the most sensitive areas of modern software infrastructure." Choosing Rustls "underscores the lab's focus on infrastructure-critical tools, where reliability is paramount," argues explains WebProNews. But "Looking ahead, the foundation plans to expand the lab's portfolio, inviting applications from promising Rust initiatives. This could catalyze innovations in areas like embedded systems and blockchain, where Rust's efficiency shines."

Their article notes that the Rust Foundation "sees the lab as a way to accelerate innovation while mitigating the operational burdens that often hinder open-source development." [T]he Foundation aims to provide a stable, neutral environment for select Rust endeavors, complete with governance oversight, legal and administrative backing, and fiscal sponsorship... At its core, the Rust Innovation Lab addresses a growing need within the developer community for structured support amid Rust's rising adoption in sectors like systems programming and web infrastructure. By offering a "home" for projects that might otherwise struggle with sustainability, the lab ensures continuity and scalability. This comes at a time when Rust's memory safety features are drawing attention from major tech firms, including those in cloud computing and cybersecurity, as a counter to vulnerabilities plaguing languages like C++...

Industry observers note that such fiscal sponsorship could prove transformative, enabling projects to secure funding from diverse sources while maintaining independence. The Rust Foundation's involvement ensures compliance with best practices, potentially attracting more corporate backers wary of fragmented open-source efforts... By providing a neutral venue, the foundation aims to prevent the pitfalls seen in other ecosystems, such as project abandonment due to maintainer burnout or legal entanglements... For industry insiders, the Rust Innovation Lab represents a strategic evolution, potentially accelerating Rust's integration into mission-critical systems.

The latest status report from the FreeBSD Project says no thanks to code generated by LLM-based assistants. From a report: The FreeBSD Project's Status Report for the second quarter of 2025 contains updates from various sub-teams that are working on improving the FreeBSD OS, including separate sub-projects such as enabling FreeBSD apps to run on Linux, Chinese translation efforts, support for Solaris-style Extended Attributes, and for Apple's legacy HFS+ file system.

The thing that stood out to us, though, was that the core team is working on what it terms a "Policy on generative AI created code and documentation." The relevant paragraph says: "Core is investigating setting up a policy for LLM/AI usage (including but not limited to generating code). The result will be added to the Contributors Guide in the doc repository. AI can be useful for translations (which seems faster than doing the work manually), explaining long/obscure documents, tracking down bugs, or helping to understand large code bases. We currently tend to not use it to generate code because of license concerns. The discussion continues at the core session at BSDCan 2025 developer summit, and core is still collecting feedback and working on the policy."

Taylor Otwell, inventor and maintainer of popular PHP framework Laravel, is warning against overly complex code and the risks of bypassing the framework. From a report: Developers are sometimes drawn to building "cathedrals of complexity that aren't so easy to change," he said, speaking in a podcast for maintainable.fm, a series produced by Ruby on Rails consultancy Planet Argon.

Software, he said, should be "simple and disposable and easy to change." Some problems are genuinely complex, but in general, if a developer finds a "clever solution" which goes beyond the standard documented way in a framework such as Laravel or Ruby on Rails, "that would be like a smell."

A code smell -- for the uninitiated in the The Reg readership -- is a term developers use for code that works but may cause problems at a later date. Otwell described himself as a "pretty average programmer" but reckons many others are the same, solving basic problems as quickly and efficiently as they can.

"I'm still teaching at Princeton," 83-year-old Brian Kernighan recently told an audience at New Jersey's InfoAge Science and History Museums.

And last month the video was uploaded to YouTube, a new article points out, "showing that his talk ended with a unique question-and-answer session that turned almost historic..." "Do you think there's any sort of merit to Rust replacing C?" one audience member asked... "Or is this just a huge hype bubble that's waiting to die down...?"

'"I have written only one Rust program, so you should take all of this with a giant grain of salt," he said. "And I found it a — pain... I just couldn't grok the mechanisms that were required to do memory safety, in a program where memory wasn't even an issue!" Speaking of Rust, Kernighan said "The support mechanism that went with it — this notion of crates and barrels and things like that — was just incomprehensibly big and slow. And the compiler was slow, the code that came out was slow..."

All in all, Kernighan had had a bad experience. "When I tried to figure out what was going on, the language had changed since the last time somebody had posted a description! And so it took days to write a program which in other languages would take maybe five minutes..." It was his one and only experience with the language, so Kernighan acknowledged that when it comes to Rust "I'm probably unduly cynical. "But I'm — I don't think it's gonna replace C right away, anyway."
Kernighan was also asked about NixOS and HolyC — but his formative experiences remain rooted in Bell Labs starts in the 1970s, where he remembers it was "great fun to hang out with these people."

And he acknowledged that the descendants of Unix now power nearly every cellphone. "I find it intriguing... And I also find it kind of irritating that underneath there is a system that I could do things with — but I can't get at it!"


Kernighan answered questions from Slashdot readers in 2009 and again in 2015...