RPM 6.0.1 package manager addresses crashes, crypto issues, and build problems introduced in RPM 6.0.

The Linux Mint team released today the Cinnamon 6.6 desktop environment, which will be the default in the upcoming Linux Mint 22.3 (Zena) release expected in late December 2025 or in early 2026.

The big set of networking subsystem updates was recently merged for the ongoing Linux 6.19 merge window. There are some enticing core networking improvements like a big performance improvement for heavy transfer workloads, Bluetooth PAST enablement, and more. Plus a lot of wired and wireless networking driver activity and new hardware enablement…

Merged today to the Intel open-source “ANV” Vulkan driver in Mesa 26.0 is introducing a shader VMA allocator. Long story short this new allocator steps toward enabling Vulkan ray-tracing capture/replay support, which can come in hand for debugging issues with Vulkan ray-tracing on Intel graphics hardware under Linux and similarly to assist in optimizing for better performance…

Released as UnitedXR wraps up in Brussels, this latest update to the cross-platform Open-Source OpenXR runtime delivers major improvements across hand tracking, device support, and the core runtime infrastructure. Whether you are an XR platform maker, XR OEM, researcher, developer, or XR enthusiast, version 25.1.0 introduces new capabilities that make Monado even more reliable, more flexible, and better prepared for tomorrow’s XR experiences.

Inside this week’s LWN.net Weekly Edition:

• Front: Rust in CPython; Python frozendict; Bazzite; IETF post-quantum disagreement; Distrobox; 6.19 merge window; Leaving the TAB.
• Briefs: Let’s Encrypt retrospective; PKI infrastructure; Rust in kernel to stay; CNA series; Alpine 3.23.0; cmocka 2.0; Firefox 146; 2024 Free Software Awards; Quotes; …
• Announcements: Newsletters, conferences, security updates, patches, and more.

The GNU C Library’s malloc implementation is now enabling 2MB Transparent Huge Pages (THP) by default for AArch64 Linux. This is being done in the name of better performance — a healthy 6.25% performance improvement is noted for SPEC with this change…

The newest feature to land in the cross-platform Qt toolkit is QIORing as an abstraction for Linux’s IO_uring interface. This QIORing may also end up supporting Microsoft’s Windows IORing implementation as well…

In Linux, the rename command is an amazing utility that allows you to rename single or multiple files at once, based on a set of rules or regular expressions you specify.

Let’s Encrypt has published
a retrospective that covers the decade since it published its first
publicly trusted certificate in September 2015:

In March 2016, we issued our one millionth certificate. Just two years
later, in September 2018, we were issuing a million certificates every
day. In 2020 we reached a billion total certificates issued and as of
late 2025 we’re frequently issuing ten million certificates per
day. We’re now on track to reach a billion active sites, probably
sometime in the coming year.

Greg Kroah-Hartman is writing
a series of blog posts about Linux becoming a Certificate
Numbering Authority (CNA):

It’s been almost 2 full years since Linux became a CNA (Certificate
Numbering Authority) which meant that we (i.e. the kernel.org
community) are now responsible for issuing all CVEs for the Linux
kernel. During this time, we’ve become one of the largest creators of
CVEs by quantity, going from nothing to number 3 in 2024 to number 1
in 2025. Naturally, this has caused some questions about how we are
both doing all of this work, and how people can keep track of it.

So far, Kroah-Hartman has published the introductory post, as well
as a detailed
post about kernel version numbers that is well worth reading.

In a nutshell, they eventually figure out it’s not ‘free hosting’ but a trap

With the release of the Firefox 146 web browser earlier today, the Mozilla Thunderbird 146 open-source email client is out now as well, introducing various new features and plenty of improvements.

Linux containers have made it reasonably easy to develop, distribute, and
deploy server applications along with all the distribution dependencies that they
need. For example, anyone can deploy and run a Debian-based PostgreSQL container
on a Fedora Linux host. Distrobox is a project that is designed to
bring the cross-distribution compatibility to the desktop and allow users to
mix-and-match Linux distributions without fussing with dual-booting, virtual
machines, or multiple computers. It is an ideal way to install
additional software on image-based systems, such as Fedora’s Atomic Desktops
or Bazzite, and also
provides a convenient way to move a development environment or
favorite applications to a new system.

Given the recent release of FreeBSD 15, I started off my testing in looking at how FreeBSD 15.0 improves performance versus FreeBSD 14.3. Now it’s onto the next important question: how is FreeBSD 15.0 performing relative to Linux on servers? Here are some benchmarks exploring that topic today.

Generative AI systems are changing the way people interact with computers. MCP (model context protocol) is a way that enables generate AI systems to run commands and use tools to enable live, conversational interaction with systems. Using the new linux-mcp-server, let’s walk through how you can talk with your Fedora system for understanding your system […]

AMD FSR SDK 2.1 is now available that includes their “FSR Redstone” machine learning based upscaling tech for gaming..

The AerynOS team released AerynOS 2025.12 today as the latest development ISO snapshot of this independent distribution created by ex-Solus maker Ikey Doherty.

Trixie may have gone 64-bit for installs, but WMLive still ships an i686-bootable buildWindow Maker Live 13.2 is stubbornly keeping 32-bit PCs alive on Debian 13 “Trixie,” shipping a new release that boots on i686 hardware.…

Turbostat is the Linux command-line utility for reporting CPU frequency / power / C-states and related performance / power management items namely for modern AMD and Intel processors. This CLI utility lives within the Linux kernel source tree and for Linux 6.19 has picked up a few new features…