The open-source Haiku operating system inspired by BeOS is now seeing multi-core symmetric multi-processing (SMP) support on ARM64 that works at least in a virtualized world. Plus an assortment of other improvements made to this open-source OS over the course of April.

The open-source Radeon "R300g" driver living within the Mesa codebase for supporting the aging ATI (AMD) Radeon 9500 "R300" through Radeon X1000 "R500" series graphics processors is going through a big code restructuring as part of a big undertaking in 2026... Yes, 24 years after the ATI R300 GPUs first released, thanks to a devoted open-source developer fan, there is a significant improvement in the works.

Quietly sneaking out at the end of last week was Vulkan 1.4.351 as the newest spec update to this high performance graphics and compute API.

At the beginning of the month was the surprise milestone of AMD posting AMDGPU kernel driver patches for HDMI 2.1 Fixed Rate Link (FRL) support. The HDMI FRL patches have since been updated to also enable HDMI 2.1's Display Stream Compression (DSC) functionality for higher resolutions and higher refresh rates with the open-source AMDGPU driver.

A few weeks back we reviewed the redesigned System76 Thelio Mira with a brand new chassis design and powered by the AMD Ryzen 9000 series. This was an interesting Linux-powered desktop manufactured in Colorado while for those needing a bit more performance, since then the redesigned Thelio Major launched. The new System76 Thelio Major provides an updated Thelio case design like Mira while comes packed with the AMD Ryzen Threadripper 9000 series and AMD Radeon AI PRO R9700 graphics for delivering a very powerful, all-AMD and open-source high-end Linux workstation.

GNOME's help viewer, Yelp, last year was impacted by a serious security issue for arbitrary file reads. There's a new vulnerability affecting the GNOME help viewer that led to the Yelp 49.1 release to address a possible Flatpak sandbox escape vector.

The Intel Graphics Compiler "IGC" 2.34.4 release is out today as this compiler used by the Intel Compute Runtime for Level Zero and OpenCL compute on Intel graphics hardware plus is also used as the graphics shader compiler under Windows.

Introduced in Linux 7.0 was FSERROR as generic I/O error reporting infrastructure. Linux to that point had no standardized mechanism for reporting metadata corruption or file I/O errors to user-space with each file-system doing its own thing. The Flash-Friendly File-System (F2FS) is now the latest Linux file-system preparing for FSERROR usage.

The upcoming Linux 7.2 kernel will be adding support for Microchip's Switchtec PCIe Gen6 switches.

Last week's drm-misc-next pull request of new Direct Rendering Manager and accelerator driver feature material destined for Linux 7.2 include some new power management control features both for the AMD Ryzen AI and Intel NPU drivers.

Sculpt OS as the general purpose operating system built off the Genode OS Framework is out with a new feature release.

Linux 7.0.6 is out as stable this morning to finish mitigating the Dirty Frag vulnerability that was made public last week.

Linus Torvalds just issued the third weekly test candidate of the Linux 7.1 kernel with around a third of the patches being for the networking subsystem.

Following a presentation at last week's Linux storage, file-system, memory management and BPF summit (LSFMM) in Croatia where Linux I/O overhead compared to the Storage Performance Development Kit (SPDK) was presented, Jens Axboe was motivated to pursue some new Linux kernel optimizations for greater per-core I/O performance. This lead IO_uring developer and Linux block maintainer has managed to achieve around a 60% increase to the per-core I/O performance with his latest patches.

With half-way through the Debian 14 "Forky" development cycle, the Debian release team is out with an update this weekend and some big news.

The newest open-source AMD Linux driver on the Linux kernel mailing list that has recently been undergoing review is prom21-xhci that exposes the temperature sensors found on the AMD Promontory 21 chipsets' xHCI controllers.

New tooling being worked on for possible mainline Linux kernel inclusion is Kconfirm as a new tool for detecting misusage and efforts stemming from Kconfig, the configuration system for kernel builds.

Microsoft released Azure Linux 3.0.20260506 on Saturday in order to ship the latest security fixes affecting a wide variety of open-source software projects.

While since GNOME 48 Decibels is the new audio player of the GNOME desktop, there is no shortage of other GNOME/GTK-aligned music players. Last month was the big Amerbol music player update and there are Lollypop and others. The latest GNOME-aligned music player now hitting the 1.0 milestone is Nocturne.

Hyprland 0.55 is out today as a big feature update for this Wayland-based compositor.