Steam's November 2025 survey shows Linux gaming climbed to its highest share in a decade "thanks to the success of the Steam Deck, the underlying Steam Play (Proton) software, and now further excitement thanks to the upcoming Steam Machine and Steam Frame," writes Phoronix's Michael Larabel. From the report: A decade ago in the early Steam days the initial use was around 3% and back then the Steam user-base in absolute terms was much smaller than it is today. Back in October Steam on Linux finally re-crossed that 3% threshold after for years being stuck in a 1~2% rut. Now the Steam Survey results were published minutes ago for November and they continue an upward trend for Linux.

Steam on Linux is up to 3.2%, an increase of 0.15% for the month. One year ago Steam on Linux was at 2.03% last November, 1.91% for November 2023, and a decade ago for November 2015 was at just 0.98%. [...] Due to AMD APUs powering the Steam Deck, AMD CPUs continue to power nearly 70% of Linux gaming systems. Meanwhile under Windows, AMD has around a 42% CPU marketshare.

From the blog 9to5Linux: Linux kernel 6.18 is now available for download, as announced today by Linus Torvalds himself, featuring enhanced hardware support through new and updated drivers, improvements to file systems and networking, and more. Highlights of Linux 6.18 include the removal of the Bcachefs file system, support for the Rust Binder driver, a new dm-pcache device-mapper target to enable persistent memory as a cache for slower block devices, and a new microcode= command-line option to control the microcode loader's behavior on x86 platforms. Linux kernel 6.18 also extends the support for file handles to kernel namespaces, implements initial 'block size > page size' support for the Btrfs file system, adds PTW feature detection on new hardware for LoongArch KVM, and adds support for running the kernel as a guest on FreeBSD's Bhyve hypervisor.

Microsoft's push to transform Windows into an "agentic OS" that allows AI agents to control PCs is drawing user backlash similar to the Windows 8 controversy, as the company marks the operating system's 40th anniversary this week, writes Tom Warren, a reporter at The Verge who has been covering Microsoft for nearly two decades. Windows chief Pavan Davuluri announced the agentic OS plans in a post on X last week and faced immediate criticism in hundreds of replies before they were locked days later.

"It's evolving into a product that's driving people to Mac and Linux," one person wrote, while another asked for a return to Windows 7's "clean UI, clean icon, a unified control panel, no bloat apps, no ads, just a pure performant OS." Davuluri later responded to software engineer Gergely Orosz, saying "we care deeply about developers" and acknowledging Microsoft has "work to do on the experience, both on the everyday usability, from inconsistent dialogs to power user experiences."

Microsoft CEO Satya Nadella told the Dwarkesh Podcast that the company's business "which today is an end user tools business, will become, essentially an infrastructure business in support of agents doing work." The Recall feature already spooked users when it was initially turned on by default before Microsoft reworked it to be opt-in. Navjot Virk, corporate vice president of Windows experiences, told The Verge that "every user can use [AI agents] when they're ready. It's their choice, they decide."

Blender 5.0 has been released with major upgrades including HDR and wide-gamut color support on Linux via Wayland/Vulkan, significant theme and UI improvements, new color-space tools, revamped curve and geometry features, and expanded hardware requirements. 9to5Linux reports: Blender 5.0 also introduces a working color space for Blend files, a new AgX HDR view, a new Convert to Display compositor node, new Rec.2100-PQ and Rec.2100-HLG displays that can be used for color grading for HDR video export, and new ACES 1.3 and 2.0 views as an alternative to AgX and Filmic.

A new "Jump Time by Delta" operator for jumping forward/backward in time by a user-specified delta has been introduced as well, along with a revamped Curve drawing, which better supports the new Curves object type and all of their features, and a new Geometry Attribute constraint.

Also new is a "Cylinder" option for curve display type that allows rendering thicker curves without the flat ribbon appearance, support for the Zstd (Zstandard) fast lossless compression algorithm for point caches, as well as a new "Curve Data" panel in edit mode that allows tweaking built-in curve attribute values. A full list of changes can be found here. You can download from the official website.

Android's security team published a blog post this week about their experience using Rust. Its title? "Move fast and fix things." Last year, we wrote about why a memory safety strategy that focuses on vulnerability prevention in new code quickly yields durable and compounding gains. This year we look at how this approach isn't just fixing things, but helping us move faster.

The 2025 data continues to validate the approach, with memory safety vulnerabilities falling below 20% of total vulnerabilities for the first time. We adopted Rust for its security and are seeing a 1000x reduction in memory safety vulnerability density compared to Android's C and C++ code. But the biggest surprise was Rust's impact on software delivery. With Rust changes having a 4x lower rollback rate and spending 25% less time in code review, the safer path is now also the faster one... Data shows that Rust code requires fewer revisions. This trend has been consistent since 2023. Rust changes of a similar size need about 20% fewer revisions than their C++ counterparts... In a self-reported survey from 2022, Google software engineers reported that Rust is both easier to review and more likely to be correct. The hard data on rollback rates and review times validates those impressions.

Historically, security improvements often came at a cost. More security meant more process, slower performance, or delayed features, forcing trade-offs between security and other product goals. The shift to Rust is different: we are significantly improving security and key development efficiency and product stability metrics.

With Rust support now mature for building Android system services and libraries, we are focused on bringing its security and productivity advantages elsewhere. Android's 6.12 Linux kernel is our first kernel with Rust support enabled and our first production Rust driver. More exciting projects are underway, such as our ongoing collaboration with Arm and Collabora on a Rust-based kernel-mode GPU driver. [They've also been deploying Rust in firmware for years, and Rust "is ensuring memory safety from the ground up in several security-critical Google applications," including Chromium's parsers for PNG, JSON, and web fonts.]
2025 was the first year more lines of Rust code were added to Android than lines of C++ code...