The blog OMG Ubuntu reports that a new version of the Raspberry Pi 4 Model B has been (quietly) introduced. "The key difference? It now uses a dual-RAM configuration." The Raspberry Pi 4 Model B (PCB 13a) adopts a dual-RAM configuration to 'improve supply chain flexibility' and manufacturing efficiency, per a company product change notice document. Earlier versions of the Raspberry Pi 4 use a single RAM chip on the top of the board. The new revision adds a second LPDDR4 chip to the underside, with a couple of passive components also moved over... In moving to a dual-chip layout, Raspberry Pi can combine two smaller — and marginally cheaper — modules to hit the same RAM totals amidst fluctuating component costs... This change will not impact performance (for better or worse). The Broadcom BCM2711 SoC has a 32-bit wide memory interface so the bandwidth stays identical; this is not doubling the memory bus, it's just a physical split, not a logical one. Plus, the new board is fully compatible with existing official accessories, HATs and add-ons. All operating systems that support the Pi 4 will work, but as the memory setup is different a new version of the boot-loader will need to be flashed first.

Read more of this story at Slashdot.

Four economists across Central European University, Bielefeld University and the Kiel Institute have built a general equilibrium model of the open-source software ecosystem and concluded that vibe coding -- the increasingly common practice of letting AI agents select, assemble and modify packages on a developer's behalf -- erodes the very funding mechanism that keeps open-source projects alive. The core problem is a decoupling of usage from engagement. Tailwind CSS's npm downloads have climbed steadily, but its creator says documentation traffic is down about 40% since early 2023 and revenue has dropped close to 80%. Stack Overflow activity fell roughly 25% within six months of ChatGPT's launch. Open-source maintainers monetize through documentation visits, bug reports, and community interaction. AI agents skip all of that. The model finds that feedback loops once responsible for open source's explosive growth now run in reverse. Fewer maintainers can justify sharing code, variety shrinks, and average quality falls -- even as total usage rises. One proposed fix is a "Spotify for open source" model where AI platforms redistribute subscription revenue to maintainers based on package usage. Vibe-coded users need to contribute at least 84% of what direct users generate, or roughly 84% of all revenue must come from sources independent of how users access the software.

Read more of this story at Slashdot.

Long-time Slashdot reader destinyland writes: Just months after his 20th birthday, Bill Gates had already angered the programmer community," remembers this 50th-anniversary commemoration of Gates' Open Letter to Hobbyists. "As the first home computers began appearing in the 1970s, the world faced a question: Would its software be free?" Gates railed in 1976 that "Most of you steal your software." Gates had coded the BASIC interpreter for Altair's first home computer with Paul Allen and Monte Davidoff — only to see it pirated by Steve Wozniak's friends at the Homebrew Computing Club. Expecting royalties, a none-too-happy Gates issued his letter in the club's newsletter (as well as Altair's own publication), complaining "I would appreciate letters from any one who wants to pay up." But freedom-loving coders had other ideas. When Steve Wozniak and Steve Jobs released their Apple 1 home computer that summer, they stressed that "our philosophy is to provide software for our machines free or at minimal cost..." And early open-source hackers began writing their own free Tiny Basic interpreters to create a free alternative to the Gates/Micro-Soft code. This led to the first occurrence of the phrase "Copyleft" in October of 1976. Open Source definition author Bruce Perens shares his thoughts today. "When I left Pixar in 2000, I stopped in Steve Job's office — which for some reason was right across the hall from mine... " Perens remembered. "I asked Steve: 'You still don't believe in this Linux stuff, do you...?'" And Perens remembers how that movement finally won over Steve Jobs and carried the day. "Three years later, Steve stood onstage in front of a slide that said 'Open Source: We Think It's Great!' as he introduced the Safari browser, which at that time was based on the browser engine developed by the KDE Open Source project!"

Read more of this story at Slashdot.