fidzu : Operating Systems

About five months after the previous release, the MorphOS team has released MorphOS 3.21. It brings the usual list of big fixes and smaller improvements, but there's a few big ticket items in here as well. MorphOS 3.21 introduces BasicWorks, an office suite made up of CellBasics and PageBasics. It offers document and spreadsheet authoring and loads and saves Microsoft Office and OpenOffice documents. Also new are NVMEMount, an auto-mounter for booting from and mounting NVMe partitions, and the Marbles and Cyber 3D blankers. Graphics performance has been improved, with a faster Radeon driver on cards with little video memory thanks to GART backed bitmap transfers, quicker TinyGL texture copies, hardware accelerated antialiased text in TTEngine and much faster color SVG glyph rendering in Cairo. The Bcm43xx wireless driver has been substantially reworked, with automatic transmit rate selection, updated firmware and numerous connection fixes. PowerBook and iMac hotkeys are now fully configurable. ↫ MorphOS 3.21 release announcement The BasicWorks office suite has been in the works for a while now, and more information on it can be found in a thread on the MorphZone forums and on the website for the spreadsheet component of the suite, CellBasics. The formula loaders and xlsx loaders are ports of open source projects, but the rest of the application is new code based on ObjectiveC++ and Cairo/Harfbuzz. It uses its own file format, but can import csv and xslsx files, so I'm assuming the same more or else applies to the word processor (but with docx, of course). Alongside MorphOS 3.21 also comes a new release for Wayfarer, the web browser the Amiga-inspired operating system uses. Wayfarer 12.0 moves to WebKitGTK 2.52.5 (which was released in July of 2026, so it's quite up to date), and now uses the Skia graphics library. R300-R500 Radeons will render websites with Skia-GL for some massive performance improvements, helped further along by a slew of additional performance optimisations. Adblocking has been improved as well, YouTube should work a lot better now, and much more. The full release notes for MorphOS 3.21 give you all the details.

07 Nov 2026 7:46pm GMT

Ask any program to listen on port 0 and it will hand you a socket on port 47193…or 58037…or whatever the kernel felt like that day. Port 0 is not a port you can have. It is the number you pass when you want the operating system to pick one for you. But a TCP header is just bytes. The destination port field is 16 bits wide, and 0x0000 fits in 16 bits as well as anything else does. Nothing on the wire stops a packet from being addressed to port 0. Your tools will refuse it, your browser will block it, and your scanner's default port list skips it, because everyone agrees it isn't a real port. Which makes it a pretty good place to hide things, whether anyone meant to or not. So we did some TCP cowboy shit & port scanned the entire fucking internet for open ports on port 0, which uncovered some interesting unexpected findings. ↫ acidvegas An awesome and entertaining read. Don't skip this one.

07 Nov 2026 7:33pm GMT

A little tidbit of news regarding the nest major update to Windows, known as Windows 11 27H2. Apparently, it's going to come with some more serious changes to the codebase, therefore necessitating a full operating system swap instead of a mere enablement package, much like Windows 11 24H2 was. For those who need a refresher, Microsoft has long been rumored to be running on a three-year release cadence and for a while, it was even thought that the company would launch Windows 12 in 2H 2024. That evidently didn't happen, as instead we got Windows 11 24H2, but it was a major upgrade, a full OS swap compared to Windows 11 23H2 and 22H2. Essentially, it looks like every three releases, Microsoft is performing a full swap with major changes in the underlying codebase, and it seems to line up with Windows 11 27H2 as well. At the moment it's not known if system requirements will change or not. ↫ Sayan Sen at Neowin.net Microsoft is currently testing adding support for Intel's Advanced Performance Extensions, which should yield improved 64bit performance and reduced power consumption. It makes sense to assume this support will be coming with Windows 11 27H2, which should hopefully lead to tangible performance improvements across the board. Also, there's going to be a new default wallpaper. Be still my beating heart.

07 Nov 2026 7:27pm GMT

Ubuntu has been at the forefront of replacing the traditional versions of basic tools like sudo with replacements written in Rust, but aside from worries about replacing battle-tested code with brand new, relatively untested code, there's new things to worry about it. As it turns out, sudo-rs, the Rust replacement for sudo, is intentionally incompatible with the classic version in dangerous ways, as Chris Siebenmann discovered to his dismay. Basically, the classic sudo supports the use of wildcards defined using square brackets, so that if you allow a user to run, say, /usr/sbin/exim -bp, without a password, they can run exim -bpa, exim -bpc, exim -bpr, or exim -bpu without having to supply a password. This allows for very specific, fine-grained access control, which is quite a nice capability to have if you're managing many systems and users. Sadly, sudo-rs intentionally does not support this, opting to only allow you to use the generic * wildcard. Worse yet, it doesn't really make this clear, either. ↫ Chris Siebenmann I do not really have words for this. The Rust sudo has apparently opted to keep the single most dangerous wildcard while disallowing all of the wildcards that allow one to be narrow and specific about what you're allowing, and it buries this at the end of a section that devotes a bunch of words to describing functionality it doesn't have and doesn't support, with absolutely nothing else in that section to say this (either up front or in the descriptions of how all the wildcards would work if sudo-rs supported them, which it doesn't). If you're going to replace such vital, core tools like sudo that god knows how many people rely on every single day, you better be damn sure you're feature-complete and can act as a drop-in replacement. If someone switches from sudo to doas, nobody expects the experience to be identical. However, if you're consistently being told that sudo-rs is a drop-in replacement and you shouldn't expect any disruptions, you better be able to make true on that promise. Ubuntu isn't some also-ran small hobby distribution, and its developers should act like it. What a clown show.

05 Nov 2026 4:24pm GMT

The second desktop environment release I've got for you today is LXQt 2.5.0. This new version excises its last LXDE dependency, and QTerminal and QTermWidget received considerable improvements, like new background image modes, a visual bell, support for OSC-8 hyperlinks, and more. There's a ton of smaller changes and improvements as well, but do note that due to a bug, 2.5.0 broke LXQt's Monitor Settings on X11. The project intends to fix this as quickly as possible and push a point release to address this issue.

05 Nov 2026 4:03pm GMT

It's desktop environment Thursday, as I've got two new releases for you today. First, Cinnamon, the desktop environment primarily associated with Linux Mint, has hit version 6.8. This version will officially ship with Linux Mint 27, scheduled for around Christmas of this year. Highlights of Cinnamon 6.8 include hibernation support via a Suspend action in the main menu, modern one-to-one trackpad gestures for both Wayland and Xorg sessions, support for the oo7 Secret Service provider, support for multiple instances in the Sound applet, and a more unified Network applet that merges the WireGuard and VPN sections. ↫ Marcus Nestor at 9To5Linux While Cinnamon is first and foremost a Linux Mint project, it's available on countless other distributions as well, including dedicated variants for popular distributions like Fedora and Ubuntu. Its Wayland support is finally materialising too, which is long overdue.

05 Nov 2026 3:57pm GMT

The first point release for NetBSD 11 has been released. As the version number suggests, there's no major changes here. This release includes security updates for mozilla-rootcerts, brotli, xorg-server, hdaudio(4), compat_linux(8), unbound(8), and ipfilter. Among the non-security related changes are improved USB device stability on Raspberry Pi, fixed hot-plugging bugs in various USB Wi-Fi drivers, support for battery monitoring on the Microsoft Surface Go 3, fixed thread-local storage on ARMv5, fixes for running the MIPS Malta and PA-RISC ports under QEMU, support for the Zhaoxin KX-7000 CPU, and support for sensors, i2c, real-time clocks, and fan control on Sun Ultra 25/45 and Sun Fire V215/V245 machines. ↫ Nia Alarie on the NetBSD blog The full release notes provide more details.

04 Nov 2026 10:52pm GMT

Another interesting post from Raymond Chen, this time about the difficulty of dealing with a system that's become CPU-starved. The question is simple: why not just run Task Manager and important parts of the UI like the taskbar at a higher priority? The catch with running anything at high priority is that unless you have been very careful to avoid it, you will eventually run into a shared resource that you will have to wait for, and you are now stuck. Your priority checkout pass gets you to the front of the line, but if the person at the register has a large shopping cart full of groceries, you just have to wait until they are done before you get your chance. Even if the code that protects the shared resource is careful to avoid priority inversion by transferring the priority of the waiter to the thread that owns the resource, you are still stuck waiting, and that owning thread might be doing something that takes a long time, like, say, accessing a file over the network. ↫ Raymond Chen If a system has reached a state where even accessing or using something like a task manager becomes a problem, I personally just bonk my computer over the head with a forced shutdown using the power button. Honestly though, I can't remember the last time I've had to do this, as my Linux machines all seem to handle problematic applications just fine. That being said, I'm sure people managing tons of servers and/or workstations and developers debugging their own running code run into catastrophic problems like this far more often, making forced shutdowns not as practical. Have a terminal window open with top and easy access to the kill command, or make sure you can just ssh into it remotely if the UI has gone completely nuts.

04 Nov 2026 10:44pm GMT

What if you want to change the time in your car's infotainment system, but it's so locked down that you can't even open the time settings menu without a very specific, DRM'd SD card? Well, you try to jailbreak it, of course, but the amount of effort required can kind of spiral out of control. And then, all the way at the end, it's just an offset. The first thing I did was use this to create a full backup of the internal eMMC using dd. With a more complete dump of the system, I pretty quickly figured out that the date & time settings that I'm interested in are in /mnt/flash/settings.dat, which is a custom binary format. After some more reverse engineering, it turned out the unit doesn't really have a concept of timezones at all. It gets the time from GPS and stores the local offset as a number of minutes. Mine was set to 180. I changed it to 120. That is how I was finally able to fix my car's timezone. ↫ Rasmus Moorats This harrowing story involved an older car - a 2014 Renault Latitude - but with the number of screens and the amount of user-facing software only increasing every year, requiring jailbreaks to get your car to do what you want it to do are only going to become more common. I wouldn't be surprised if whole generations of cars are going to become much harder to sell in the near future, cratering the used market, because people are not willing to put up with software problems nobody wants to or can fix. He just wanted to change the goddamn time.

04 Nov 2026 10:33pm GMT

Enlightenment, the long-running desktop environment and associated libraries and frameworks, just released version 0.28.0. It brings initial support for NetBSD, support for Network Manager and a whole slew of related changes and fixes to make that possible, as well as native PipeWire support. There's also a brand new clipboard manager, which brings with it modernisations and bug fixes for related UI elements. This release also reworks a ton code related to battery management, AC polling, and more, adding features like setting battery thresholds, ACPI power profile support, and so on. Of course, there's also the long list of smaller fixes and changes. You can download the release and build it yourself, or wait for your distribution of BSD variant to package it.

02 Nov 2026 8:31pm GMT

A little while ago, we talked about 9front's Good Enough File System being ported to OpenBSD. A lot of progress has been made on this front lately. Aside from fixing bugs and porting over fixes from the 9front side, there's also been a ton more substantial changes. Some userspace tools have been done (you can now mkfs on openbsd!), but snapshot control hasn't. I'm thinking we have a userspace 'gefs' program that lets you handle this, trying to keep the interface similar to the 9front ctl file. ↫ Ori Bernstein There's still some major hurdles to overcome, some of which have already been addressed on the 9front side, but the progress is clear. Considering OpenBSD desperately needs a more modern file system, this is great news. A fun sidenote is that I'm actually posting this news item from OpenBSD.

02 Nov 2026 8:23pm GMT

"From a global allocation perspective, actually, it's quite terrible to have everybody have a bunch of the world's limited supply of DRAM sitting in their own computer and being used 5% of the time," Altman said. "You want maximum utilization in the cloud if you're trying to deal with this very supply-constrained environment. And somehow many people's intuition is the opposite of that." ↫ Andrew E. Freedman at Tom's Hardware I'm installing a 32bit operating system without support for physical address extension on my laptop with 64GB of RAM, just because I can.

02 Nov 2026 4:35pm GMT

Sculpt OS 26.10 brings quite a few new features, like scalable cursors, support for UK keyboards, better webcam support, and more, but the real meat of this release is much tastier. First, Sculpt 26.10 is the first version based on Genode's custom microkernel instead of relying on a 3rd-party kernel. This kernel - designed from the ground up for the needs of Genode and Sculpt OS in particular - is not only more "micro" than any other of the microkernels supported by Genode, it also solves long-standing deficiencies concerning CPU scheduling and kernel-memory management. Sculpt OS finally stands on Genode's own footing! Finally, Sculpt OS 26.10 pays tribute to this year's overall theme of "building bridges" by featuring our software development kit (Goa SDK) running directly on Sculpt OS without virtualization. This entails a wealth of tooling including GCC, Binutils, Git, Sequoia, Expect, Curl, man, Make, and CMake having landed on Genode. Although still young and not time-tested yet, it shows what's possible today and allows us developers to gradually shift more and more development routine into this self-hosted environment, stressing the general-purpose qualities of Genode and motivating further optimizations. ↫ Sculpt OS release 26.10 announcement This new release also completes the transition from XML to Genode's own HID language for configuration, moves from VirtualBox 6 to 7, and upgrades a whole slew of its Linux-based drivers

31 Oct 2026 8:02am GMT

Raymond Chen published another story from the Windows development trenches, this time about what happens when you hold down the power button. If you hold a PC's power button for 12 seconds, it will turn off at the hardware level without notifying the operating system. This is a safety feature so that you can turn of the computer even if the operating system's "Shut down" command isn't working. After eight seconds of the power button being held down, the Windows kernel realizes that the user is trying to do a force-power-off of the system, and it quickly takes a kernel dump that can be uploaded to the Windows Error Reporting service the next time you turn the system on. ↫ Raymond Chen I'm a bit confused by these numbers, because I have never seen a PC take this long to power off when holding down the power button; usually it takes only a few seconds to do so, meaning Windows would never generate said kernel dump. I tried reading through the various ATX specification documents to find more information on this, but then I remembered I'm not an electrical engineer so I have no idea what I'm looking at. The baseline is that ATX always provides standby power to the motherboard, and pressing the power button shorts the power button pin to ground, telling the PSU to power on fully. Pressing the power button if the computer is running tells the operating system to initiate a shutdown (although you can change this behaviour), but if you hold the button down for a certain number of seconds, it forces a power-off. So far, so good; basic information. It seems that the length of time you need to hold down the power button to force a power-off is dependent on the motherboard in question, handled by a microcontroller or some other IC. Virtually every source I can find says this timing is set to about 4-5 seconds, which is quite a bit shorter than the number of seconds given by Chen. Perhaps motherboard manufacturers consider the 12 seconds to be too long, and just do their own thing, regardless what the ATX specification suggests? What further complicates matters is that Chen details how the kernel dumps created after pressing the power button for 8 seconds do, in fact, get sent to Microsoft once the computer turns on again. In fact, he is one of the people who gets to see these dumps and respond to them, so obviously they are indeed rolling in. Does this mean there's a huge number of computers out there that require you to hold down the power button for 12 seconds to force a shutdown that nobody's ever seen? These emergency kernel dumps are internally classified as "long power button hold" (LPBH) failures. One of the pieces of information recorded in these emergency kernel dumps is whether the screen consists entirely of black pixels. Those failures are sub-classified as "black screen LPBH", and they go to a special virtual team for analysis. (I happen to be a member of this black screen LPBH team.) ↫ Raymond Chen What's going on here? Obviously, I'm not going to doubt Chen, so there must be something here I don't quite understand or that I'm missing. The ATX specification might suggest 12 seconds, but could Windows perhaps adapt its kernel dump behaviour - dumping much sooner than 8 seconds - based on the motherboard it's running on, maybe through information provided by the chipset drivers? I would love it if someone more knowledgeable than me can help us unravel this small mystery.

31 Oct 2026 7:54am GMT

From curl 8.12 through 8.16, config files could slice variable values and include other config files without an explicit depth cap. Together, these features let curl simulate any two-counter Minsky program. Under the usual idealization of unbounded strings and resources, this construction was Turing-complete. Curl 8.17.0 added a five-level include cap that breaks this reduction. ↫ Nicolas Seriot Neat.

31 Oct 2026 7:10am GMT

AlpineBSD is an operating system based on the NetBSD kernel with a userspace inspired by Alpine Linux and the objective of making it possible to use as little AI-generated software as possible. There is no LLM output included in the base system or main package repository (AlpineBSD AI policy). ↫ AlpineBSD's website AlpineBSD uses the NetBSD kernel, libc, and essential tools, and combines them with Alpine's apk-tools package manager, busybox, and generlaly preferring GNU tools over their BSD equivalents. It uses the s6 init system, but the project intends to add OpenRC as an alternative. The project is in its very early stages, so don't expect things like an installer; you're on your own, basically.

30 Oct 2026 12:16am GMT