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SmartOS is an open-source UNIX-like operating system based on illumos, a community fork of OpenSolaris. It features four technologies - ZFS (a combined file system and logical volume manager), DTrace (a dynamic tracing framework for troubleshooting kernel and application problems), Zones (a lightweight virtualisation solution), KVM and bhyve (two full virtualisation solutions for running a variety of guest operating systems, including Linux, Windows, BSD and Plan9). SmartOS is designed to be particularly suitable for building clouds and generating appliances.

Kitty is a terminal emulator that runs on Linux, macOS, and the BSDs, which is notable for its speed and features such as image support and advanced font handling. It is under active development; a recent major release adds a new level of mouse support. Here, we will look at some of those features and show how the program can also be used as platform for text-based applications. Kitty is free software, released under the GPLv3.

Version 1.97.0 of the Rust programming language has been released. Changes include using a new symbol-mangling scheme by default, support for denying warnings in Cargo, and an end to the practice of hiding the linker's output after a successful build.

EasyOS is an experimental Linux distribution which uses many of the technologies and package formats pioneered by Puppy Linux. The distribution features custom container technology called Easy Containers which can run applications or the entire desktop environment in a container. Packages, desktop settings, networking and sharing resources over the network can all be controlled through graphical utilities.

Security updates have been issued by AlmaLinux (389-ds-base, aardvark-dns, buildah, compat-openssl10, freeipmi, frr, gnutls, grafana, grafana-pcp, kernel, kernel-rt, libyang, nginx, openexr, pcs, perl-HTTP-Daemon, postgresql:18, python3.14-pip, skopeo, tomcat9, and wireshark), Debian (chromium and pgextwlist), Fedora (openssh, opkssh, perl-CSS-Minifier-XS, python-jiter, python-nh3, python-pendulum, rust-jiter, and upower), Mageia (openvpn and vips), Oracle (389-ds-base, aardvark-dns, compat-openssl10, container-tools:ol8, freeipmi, kernel, libyang, perl-HTTP-Daemon, python3.14-pip, and skopeo), Slackware (libXfont2, proftpd, and xorg-server), SUSE (alloy, apache2, apptainer, assimp, chromium, clamav, docker, docker-compose, dracut, glib-networking, go-sendxmpp, go1.26-openssl, gstreamer-plugins-good, haproxy, hauler, jackson-annotations, jackson-bom, jackson-core, jackson- databind, jackson-dataformats-binary, jackson-modules-base, jackson-parent, kernel, krb5, kubevirt, libslirp, libXfont2, mpv, libkpipewirerecord6, ffmpegthumbs-kf5, netty, netty-tcnative, openqa, os-autoinst, podman, python-maturin, python-msgpack, python313-yt-dlp, radare2, rust-keylime, systemd, systemd, systemd-mini, tomcat11, trivy, xorg-x11-server, and xwayland), and Ubuntu (apache2, clamav, linux-raspi, and mailcap).

Talos is a specialist Linux-based operating system for running Kubernetes, an open-source system for automating deployment, scaling and management of containerised applications. Minimal, immutable and hardened, it does not offer any shell or interactive console; instead, all system management is done via remote Application Programming Interface (API) calls, where messages sent from a client application are protected with mutual Transport Layer Security TLS (mTLS) authentication. Talos also delivers atomic updates, thus maintaining the Linux and Kubernetes versions up-to-date. Talos is developed in the USA by Sidero Labs, Inc.

TrueNAS CORE (previously known as FreeNAS) is a free and Open Source Network-Attached Storage (NAS) operating system that supports file, block and object storage. TrueNAS CORE is FreeBSD based and is a community-supported branch of the TrueNAS project, sponsored by iXsystems. It also has a commercial branch called TrueNAS Enterprise and a free and HyperConverged storage solution called TrueNAS SCALE. The TrueNAS SCALE branch is based on the Debian Linux distribution.

Inside this week's LWN.net Weekly Edition:

• Front: Cryptography API; Iomap explanation; Negative dentries; Faster RCUs and lockless allocation for BPF; Negative dentries; LLMs in memory-management code
• Briefs: Guix vulnerabilities; OpenSSH 10.4; trusted publishing; kernel archive; CalyxOS; Quotes; ...
• Announcements: Newsletters, conferences, security updates, patches, and more.

Unraid OS is a Linux-based commercial operating system designed to provide an easy-to-use and flexible platform for building and managing a Network-Attached Storage (NAS). Some of Unraid's main features include the ability to mix and match drives of different sizes, an easy-to-use web interface for managing storage, virtual machines and Docker containers, protection to safeguard against drive failures, ability to expand the storage by adding more drives.

Over on the OpenMandriva forum, the Linux distribution has reported sabotage of its repositories by a disgruntled contributor with administrative credentials. According to "AngryPenguin", an abusive incident in a distribution Matrix chat led to a user being kicked out of the chat; that "triggered a cascade of events", which led to people resigning from the distribution. Eventually, one of those people used their administrative privileges to delete part of the distribution's GitHub repository and to "publish an empty package in the cooker repository, which obsoleted all gnome and cosmic packages, which could have damaged the systems of people using gnome or cosmic". We are currently working to restore the deleted repositories and restore the functionality of the obsolete packages.

[...] We performed a full system audit and, aside from the removed packages, we found no other violations.

CentOS as a group is a community of open source contributors and users which started in 2003 and has been sponsored by Red Hat since 2014. CentOS Linux versions up to CentOS Linux 8 are 100% compatible rebuilds of Red Hat Enterprise Linux, in full compliance with Red Hat's redistribution requirements. In 2020 it was announced CentOS Linux is being discontinued and replaced with CentOS Stream, a developer-focused distribution which acts as a middle-stream between Fedora and Red Hat Enterprise Linux.

ReactOS is a free and open-source operating system based on the best design principles found in the Windows NT architecture. Written completely from scratch, ReactOS is not a Linux-based system and it shares none of the UNIX architecture. The main goal of the ReactOS project is to provide an operating system which is binary compatible with Windows. This will allow Windows applications and drivers to run as they would on a Windows system. Additionally, the look and feel of the Windows operating system is used, such that people accustomed to the familiar user interface of Windows would find using ReactOS straightforward. The ultimate goal of ReactOS is to allow people to use it as an alternative to Windows without the need to change software they are used to.

Equestria OS is a beginner-friendly Linux distribution based on Arch Linux and featuring the KDE Plasma desktop. Its main feature is a set of over 20 unique, built-in graphical utilities for effortless computer management, largely eliminating the need for use of the terminal emulator. The distribution comes with an integrated Proton engine, a Steam client compatibility tool that allows Windows-only games to run on Linux in secure, isolated sandboxes. It also includes a theme editor, as well as various smart tools for disk management, file relocation, and offline software installation. Equestria OS is designed primarily for gamers, digital artists and fandom fans.

Kader⁴² is an Arch-based Linux distribution featuring the KDE Plasma desktop. It is designed primarily for convertible laptops (the types that offer both laptop and tablet modes), with useful features such as display rotation, appropriate launchers and menus for notebook and tablet modes, pre-configured swipe gestures similar to those on Android or iOS, and on-screen keyboard in tablet mode working out of the box. The distribution ships with the Calamares system, LibreOffice office suite and a large number of popular productivity and multimedia applications.

Version:next-20260708 (linux-next) Released:2026-07-08

At the 2026 Linux Security Summit North America, Eric Biggers spoke about some of the problems with the kernel's cryptography framework, as well as the recent progress in adding library APIs to allow developers to use cryptographic functions without using the traditional crypto API. He walked through a couple of examples to demonstrate the frailty of the original API and showed how the new library API made life easier for developers and kernel maintainers.

Security updates have been issued by AlmaLinux (container-tools:rhel8, kernel-rt, libreoffice, nodejs:22, nodejs:24, opentelemetry-collector, perl-HTTP-Daemon, and python-markdown), Debian (dpkg, imagemagick, and postfix), Fedora (betterleaks, docker-compose, firefox, helm, perl-Compress-Raw-Bzip2, perl-IO-Compress, perl-JavaScript-Minifier-XS, python-cramjam, python-fastar, python-pillow-jxl-plugin, python-rignore, and tor), Oracle (grafana, grafana-pcp, and ruby:4.0), Slackware (tftp), SUSE (gi-docgen, glibc, helm, helm3, json-c-devel, kubevirt-1.6, librpmbuild10, python313-dulwich, python313-lxml_html_clean, python313-openapi-spec-validator, and sdbootutil), and Ubuntu (ruby-addressable).

NetBSD is a free, secure, and highly portable UNIX-like Open Source operating system available for many platforms, from 64-bit AlphaServers and desktop systems to handheld and embedded devices. Its clean design and advanced features make it excellent in both production and research environments, and it is user-supported with complete source. Many applications are easily available through The NetBSD Packages Collection.

SteamOS is an Arch-based Linux distribution developed by Valve Corporation, a US video game developer, publisher and digital distribution company. It comes with Steam, Valve's own video game store, and it is the default Linux distribution for Valve's line of gaming hardware, including the Steam Deck, Steam Machine and Steam Frame. The distribution also supports some third-party handheld devices, such as Lenovo Legion Go and ASUS ROG Ally, but it can also be installed on standard personal computers. SteamOS uses the KDE Plasma desktop as its default user interface.

Senpai Respins is a set of (principally) MX Linux respins with Cinnamon, GNOME, LXDE, LXQT, MATE and Moksha desktops and window managers, user interfaces that the upstream project does not offer. It also provides a respin of Linux Mint Debian Edition (LMDE) with MATE, and MX Linux with the Parrot distribution installed on top of it. The MX Linux variants offer a choice between the systemd and SysV init systems. Other than integrating a new desktop into an existing distribution, Senpai brings very few other modifications, leaving the software composition and visual appearance of the upstream project intact.