As part of KDE's 30th anniversary celebration, the project has released The KDE Documentary — A Story of Free Software Underdogs (YouTube video):

The story starts in 1996, when Matthias Ettrich, a student at the University of Tübingen, posted to a Usenet group asking for programmers to help build a desktop for Linux. What followed became KDE, one of the largest free software communities in the world. KDE made Linux usable as a desktop for people who weren't system administrators, giving it a complete, consistent graphical environment at a time when there was none.

The film covers the highs and lows of three decades of KDE: the Qt licensing fight and the rivalry with GNOME; the success of KHTML, the browser engine that became the basis of Apple's WebKit and Google's Chrome; and the contentious release of KDE 4 and the rebuild that followed.

Canonical has announced the release of Ubuntu 26.10 ("Stonking Stingray"):

Ubuntu 26.10 advances enterprise security features, completes the rollout of the Rust-based uutils coreutils, and strengthens integrations for user authentication using Microsoft Entra ID.

[...] Ubuntu 26.10 also ships with GNOME 51, bringing a smoother, more responsive desktop, better display handling, improved accessibility, and refinements across core applications. In addition, the Ubuntu App Center now provides a more consistent experience for managing snaps and debs.

See the release notes for a list of new features as well as incompatible changes between 26.10 and prior Ubuntu releases.

Security updates have been issued by AlmaLinux (environment-modules, flatpak-builder, kernel, kernel-rt, librabbitmq, libreoffice, libsoup, mod_auth_openidc:2.3, nodejs:22, nodejs:24, OpenEXR, opentelemetry-collector, pki-core:10.6, postgresql:12, python-tornado, python36:3.6, ruby:3.3, tftp, and xorg-x11-server), Debian (buildstream, firefox-esr, mariadb, and sogo), Fedora (exim, freerdp, python3-docs, and python3.14), Mageia (drakx-installer-images, kernel, kmod-nvidia-current-wopengpu, kmod-virtualbox), Oracle (curl, emacs, environment-modules, flatpak, flatpak-builder, gd, hplip, kbd, kernel, librabbitmq, libreoffice, libxml2, microcode_ctl, mod_auth_openidc:2.3, nodejs:22, OpenEXR, pcre2, perl-DBI, python-tornado, rsyslog, tftp, thunderbird, and xorg-x11-server), Red Hat (compat-libtiff3, firefox, ghostscript, idm:DL1, ipa, kernel, kernel-rt, libtiff, lrzsz, and mariadb-connector-c), Slackware (libarchive), SUSE (amazon-cloudwatch-agent, bind, container-suseconnect, containerd, glibc, google-osconfig-agent, helm, kernel, python312, python313-oletools, python313-openpyxl, python313-orjson, python313-paramiko, python313-pipreqs, python313-py, python313-pycryptodome, python313-pycryptodomex, python313-pydrive2, python313-python-engineio, webkit2gtk3, and xorg-x11-server), and Ubuntu (apache2, bind9, bluez, curl, openssh, python-urllib3, and u-boot).

Greg Kroah-Hartman has announced the release of the 7.2.11, 6.18.57, 6.12.113, 6.6.159, 6.1.190, 5.15.223, and 5.10.272 stable kernels. This series includes, among other things, a fix for a critical vulnerability (CVE-2026-99999). The flaw in skb_checksum_help() would allow an IPv4 packet with bad checksum metadata to "corrupt the network header and cause a bunch of mischief" in the words of patch author Michael S. Tsirkin. As usual, all users are advised to upgrade.