fidzu : Operating Systems

In what is quite a major achievement, Wine has been ported and made to work on OpenBSD. We have since tested several dozens of 64-bit Windows software, mostly successfully. See screenshots, livestream recordings for example. Even the Remaster of The Witcher 3 which released just last month runs, and runs well (requires adding in vkd3d-proton; see README; livestream which looks less fluent than it is due to the on-system recording with ffmpeg). ↫ Thomas Frohwein The biggest limitation seems to be the lack of support for WoW64, so 32bit Windows software won't work. Still, this is a massive milestone for OpenBSD, and makes especially gaming a somewhat viable option on OpenBSD.

19 Oct 2026 6:38am GMT

What if a regular, normal NetBSD installation is too plebeian for you? This is a quick overview which attempts to synthesize DW Armstrong's tutorial on NetBSD encryption with the cgdroot page from the NetBSD wiki in a single MBR partition, divided into multiple disklabel slices to preserve MBR entries. ↫ indigoparadox Web Zone What if you need this?

19 Oct 2026 6:31am GMT

Significant changes in this release include some significant binfmt_misc extensions, some group-scheduling work aimed at improving performance on large systems, the new failfs filesystem that fails all operations, the fchroot() system call, global per-CPU data for BPF programs, the completion of the sched_ext subscheduler feature, working-set tracking for virtual machines, alternative data-stream support in the ntfs3 filesystem, a long list of SMB server improvements, and much more. ↫ "corbet" at LWN.net It'll make it way to your distribution of choice soon enough.

19 Oct 2026 6:21am GMT

In 1980, Intel introduced the 8087, a chip that made floating-point operations much faster in the IBM PC and other systems. Although the 8087 supports advanced operations such as tangents, square roots, and logarithms, this article focuses on basic arithmetic operations: addition and subtraction. The 8087 provided a spectacular speed improvement over the 8086 processor, speeding up addition by a factor of almost 100, and complicated operations by even more. In this article, I examine the 8087's microcode and circuitry to explain exactly how floating-point addition and subtraction are implemented, including numerous special cases for infinities and other special values. ↫ Ken Shirriff Shirriff took an actual chisel to the 8087 coprocessor to gain access to the insides for highly detailed photographs, taken with a microscope. They look amazing.

18 Oct 2026 11:34pm GMT

Only a few day ago I linked to a massive collection of original Palm OS development resources, and today we can take a look at what it was like to put all of those resources into practice: the original source code for the Palm OS port of Lemmings. With these resources combined, there's no excuse to not building any Palm OS applications. I'd really like a modern email client, a Fediverse client, and a slightly more modern browser surely wouldn't hurt. Get on it!

18 Oct 2026 11:29pm GMT

It's been two years since my initial post about making GNOME OS an end-user general purpose OS. Today, we're excited to announce that we've hit a major milestone! TL;DR: We're launching a new edition called "GNOME OS Preview", which is built from the latest stable GNOME release. This means that GNOME OS is no longer just a nightly OS for GNOME developers and testers! ↫ Aaron Ardiri A number of changes and improvements have made the move from nightly status to preview status possible. They've made GNOME OS handle environments with limited amounts of RAM much better - not a luxury, these days - including the ability to dynamically increase the swap space if needed. In addition, the work to make it much easier to install and test daily Flatpak builds of applications is now part of GNOME OS, as is the effort to make command-line utilities manageable in the same way as Flatpaks. As the blog post notes, there's still a ton of work left to do before GNOME OS is ready for everyone. They're going to bet heavily on systemd-homed to enable, among other things, per-user disk encryption, and there's a new installer coming, as well. They also want to ship GNOME's preinstalled applications as Flatpaks, integrate delta updates, and much more. It all looks incredibly appealing, even if I am not the target user for something like GNOME OS.

16 Oct 2026 11:54pm GMT

This repository contains approximately 1 GB of historical Palm OS development material, collected over many years of working with the platform. The archive includes a mixture of publicly distributed development resources, personal development material, technical references, and historical artifacts. ↫ Aaron Ardiri An incredible resource for anyone wishing to dive into Palm OS programming and development in this day and age.

16 Oct 2026 8:47pm GMT

OpenVMS isn't exactly the easiest platform to get into, with even the first major hurdle - licensing! - being a bit of a complex issue. To address this and other issues people new to OpenVMS might run into, VSI, the company currently developing OpenVMS, launched its new VSI How-to Portal. For now, it covers things like licensing, installing and updating OpenVMS for x86, TCP/IP configuration, and setting up SSH. The company plans to expand the portal with more articles based on customer and user feedback, so hopefully more information will appear soon. Most of us are probably not particularly not particularly experienced with OpenVMS, so having a portal like this can really help get you started.

15 Oct 2026 11:55pm GMT

Microsoft's been claiming for a while now that they're working on improving performance and responsiveness in Windows, with a particular focus on making more efficient use of memory. This is probably the only positive thing to come out of the RAM crisis Microsoft helped create and is currently still fueling. The company's now claiming that Windows 11 is "up to 20% more responsive" thanks to these efforts. The result is a Windows experience that's up to 20% more responsive, with improvements you can feel as soon as you boot into your PC and extending to Start, File Explorer, Search, Snipping Tool, Microsoft 365, Edge and more. A big part of that work is making smarter use of memory and system resources. We've improved memory management and efficiency across Windows to help keep more of your PC's resources focused on what you're actively doing. That work can make an especially meaningful difference on PCs with 8GB of memory. Windows can now keep up to 2GB more of your active data in memory instead of moving it to slower storage, helping your PC stay responsive as you open more apps or browser tabs. Windows is also making additional memory-saving improvements that reduce background memory use. For example, on PCs with 8GB of memory or less, Widgets load only when you open them, making more than 200 MB of memory available for your apps and other work. It's one example of the broader work underway to reduce the Windows memory footprint and deliver a fast, responsive experience across the PCs people use every day, an area we've made an explicit focus for Windows. ↫ Navjot Virk on the Windows Blogs If, for a moment, we take these claims at face value, they're simply good news for every Windows 11 user, and legitimately the only good thing to come out of the RAM crisis. These kind of claims are always hard to measure, especially considering just how varied the Windows software and hardware ecosystem is, but I'm sure people good at benchmarking are going to try and find some more definitive answers here. In the same blog post, Microsoft also highlights several other recent improvements it's made to Windows 11, like the new search experience we talked about recently, a brand new Photos application, some new whiteboard-like application, and several more things. Considering how complex Windows' versioning scheme and various branches have become, I have no idea when these features and improvements actually make their way to your machine. On a slightly related note, Microsoft also unveiled that it's bringing Microsoft Defender to Linux, with a particular focus on desktop Linux. Even Microsoft has to face the reality of the rising popularity of Linux on the desktop.

15 Oct 2026 11:47pm GMT

Graphical user interfaces for DOS were a dime-a-dozen back in the '90s, but of course faded into irrelevance as time went on. But what if you still run DOS today, and want a maintained graphical shell instead of the rather limited DOS command line? Costa is a small and lightweight application which runs on top of MS-DOS or compatible operating systems. It replaces the DOS-prompt with a clean, user-friendly interface - a so-called GUI (Graphical User Interface). Costa comes packed with a bunch of useful accessories and can be used with or without a mouse. Developed by Jacob Palm, a Danish IT-professional and hobby developer, the first release of Costa came way back in 2004. Over the years - and through several releases - Costa has gradually evolved into what it is today, with new releases still coming out regularly as of 2025. ↫ Costa website Costa comes bundled with a number of useful utilities, a few games, and useful features like a desktop with custom icons, virtual desktop support, a file selector, and much more. The latest release, version 1.8.0, was released in late 2024, and should run on just about any IBM PC-compatible, but a 386 is recommended. It's been tested with a variety of DOS flavours, including FreeDOS ad DOSBox, so it should run pretty much anywhere.

15 Oct 2026 1:20pm GMT

Ubuntu 26.10 has landed. Ubuntu 26.10 brings significant progress for security, and strengthens the platform with the full adoption of Rust-based coreutils, post-quantum-ready package signing, and expanded TPM-backed full-disk encryption support. Enterprise authentication gains deeper integration with Microsoft Entra ID, including password and multi-factor authentication. Linux kernel 7.3 extends support for the latest hardware, alongside new RISC-V desktop images and optimized amd64v3 installation images. ↫ Ubuntu 26.10 release announcement Of course, it comes with the latest version of GNOME, and the whole family of Ubuntu variants focusing on other desktops have also been updated. While I doubt many people here run Ubuntu, it's still quite popular, and serves as the base for countless other distributions.

15 Oct 2026 1:11pm GMT

KDE turns 30 today, and they're celebrating it with a brand new KDE Plasma release: version 6.8 is here. On the accessibility front, 6.8 brings a new dwell clicker function (meaning a click will register if the pointer is held still for a short while) and support for the Bikram Sambat calendar and the Amharic language. I always love it when I see support for new languages and scripts, especially when, as is the case here, it's a language spoken as a first language by 25 million people. The Plasma remote desktop has also been improved with bi-directional copy/paste, performance and quality improvements, and more, and you can now record microphone and audio while screen recording with Spectacle. In System Monitor, you can now assign processes and tasks to specific processors/cores, which is a great feature for people running intensive tasks but who would still like to, you know, do other things while those tasks are running. KDE 6.8 drops support for X11, focusing entirely on Wayland. Of course, X11 applications will remain usable thanks to Xwayland, and KDE's applications will continue to support X11 in case you're using them outside of KDE. This release also further expands the Union theming system, now adding support for styling Qt Widgets. Union is still in beta, so you'll have to enable it to test it. There's a ton more, too, but these are some of the highlights. KDE Plasma 6.8 will find its way to your distribution of choice soon enough.

14 Oct 2026 3:03pm GMT

You know the drill by now - a new month, a new Haiku activity report. This past month doesn't seem to have any big ticket items, but instead contains a long list of smaller but still welcome fixes. Various filesystem drivers saw some work, a few bugs in virtio drivers were fixed, and NVMM execution is now easily interruptible by signals which should improve performance in various emulators like QEMU. Be sure to comb through the complete list to see if there's anything in there that impacts you.

14 Oct 2026 2:53pm GMT

The ESA - not, not the cool one - a lobby group made up of various videogame and entertainment companies, has asked the US Trade Representative (USTR) to add Anbernic to its list of companies that are supposedly notorious for engaging in and facilitating piracy. If you're unaware, Anbernic is one of the bigger names in Android and Linux-based handheld gaming devices targeted at the retrocomputing market. While many online sellers do include an SD card full of ROMs alongside emulation hardware of all types, Anbernic itself does not appear to do the same when selling directly from its website. Regardless, the ESA argues that these ROM-laden Anbernic devices selling through "normal retail channels" help to "normalize hardware-based piracy by delivering illicit catalogues through a polished consumer product." This, the ESA says, meets the threshold for a "superfake," an ill-defined designation that applies to "high-quality counterfeit trademark goods … on a commercial scale." ↫ Kyle Orland at Ars Technica There's a lot of murkiness surrounding whether or not Anbernic sells their devices with preloaded ROMs or not. The number of reports from people who say they did get a ton of ROMs on their Anbernic devices, bought from Anbernic's own store, is large enough that it's clearly something they do. However, there's an equal number of people who say their Anbernic devices were completely free of ROMs, and I'm one of them - I've bought like three or so devices from their store over the years, and they never came with any ROMs. My most recent purchase was an RG 35XXPro Linux-based model, and there were no ROMs on it (I replaced the stock operating system with Knulli, which has been a great experience). If Anbernic does indeed ship at least some of their devices with ROMs preinstalled, then it's their own damn fault if that lands them in legal trouble. It's not like downloading ROMs is particularly difficult (just do an internet search for your preferred system and something like "ROM pack" and you'll get the console's complete library in a single download), so they really have no need to do so. There's one extra layer here though. Third-party resellers like Amazon offer loads of Anbernic devices preloaded with SD cards full of ROMs, all from third parties not affiliated with Anbernic. And wouldn't you know it - Amazon is a member of the ESA lobby group. In other words, the problem also lies with lax retailers not properly vetting what they're offering, but instead of going after places like Amazon, they're going after Anbernic instead. Amazon is a haven for illegal and counterfeit products, but they're so wealthy and powerful they just get away with it.

14 Oct 2026 2:43pm GMT

Are you aware of ReFS, Microsoft's next-generation file system for Windows? I'm sure the average OSNews reader is, but I really wonder how many people are using it out in the wider world, even though Microsoft keeps improving it. Since earlier this year, Windows Server and Windows 11 can boot from ReFS volumes, and it's used by Windows' Dev Drive feature as well. What Microsoft doesn't seem to want, though, is people using ReFS on removable drives. Starting with Windows updates released on and after October 13, 2026, Microsoft is making hardening changes to the Resilient File System (ReFS). This article describes Windows hardening changes for ReFS volumes that are mounted from removable media. ReFS on removable media, such as a USB disk, is not a supported configuration. The changes add auditing and enforcement controls that help administrators identify these volumes and prevent them from being mounted. ↫ Microsoft Knowledge Base article I'm oddly fascinated by this. Apparently, there are enough people out there trying to use ReFS on removable media to warrant the above auditing and enforcement controls, which is fascinating in an of itself. On top of that, using ReFS on removable media is apparently also dangerous enough - which raises the question of why, exactly, it's so dangerous in the first place. Microsoft doesn't really explain itself here, other than saying it's "not a supported configuration". I wonder if and when Microsoft will move from NTFS to ReFS as the default file system for new Windows installations. It's been around for quite a while now, and there's no denying that competing operating systems, especially in the server space, have file systems that are far superior to NTFS (like Btrfs, ZFS, and others), and I'm assuming Microsoft would love to catch up. It's been a long time since Microsoft changed Windows' default file system, however, and with the massive number of people using Windows, it's not something to take lightly. Then again, Apple migrated hundreds of millions of iPhones, iPads, and Macs to a brand new file system without anybody noticing a thing, and as far as I can recall, without any problems.

14 Oct 2026 12:08am GMT

Both NeXT and Improv brought innovative solutions to their respective computing questions of the day. NeXT made UNIX palatable to those scared of the terminal, debuted Display Postscript on a mega-pixel display, and made development for the system a snap. Improv rethought multi-dimensional data modeling, offered English-like formulas, and made it easy to rearrange data views on a whim. The bones of both remain to this day. NeXT's operating system, NeXTSTEP / OPENSTEP, morphed into macOS, and by extension iOS. Lotus abandoned Improv fairly quickly, but a quick survey of today's spreadsheets shows a universal embrace of pivot tables. ↫ Christopher Drum I had never heard of Lotus Improv, so I learned a lot reading this outstanding article by Drum.

13 Oct 2026 11:50pm GMT