Greg Kroah-Hartman has announced the release of the 7.0.2, 6.18.25, 6.12.84, and 6.6.136 stable kernels. As usual, each contains important fixes throughout; users are advised to upgrade.

David Steele, maintainer of the popular pgBackRest backup and restore project for PostgreSQL, has archived the project and announced that it is no longer being maintained.

After a lot of thought, I have decided to stop working on pgBackRest. I did not come to this decision lightly. pgBackRest has been my passion project for the last thirteen years, and I was fortunate to have corporate sponsorship for much of this time, but there were also many late nights and weekends as I worked to make pgBackRest the project it is today, aided by numerous contributors. Every open-source developer knows exactly what I mean and how much of your life gets devoted to a special project.

Since Crunchy Data was sold, I have been maintaining pgBackRest and looking for a position that would allow me to continue the work, but so far I have not been successful. Likewise, my efforts to secure sponsorship have also fallen far short of what I need to make the project viable.

Jon Seager, VP engineering for Canonical, has posted an update on "what Canonical and Ubuntu will do (or not) to incorporate AI" that explains what part AI will play in the future of the company and its distribution.

The bottom line is that Canonical is ramping up its use of AI tools in a focused and principled manner that favours open weight models with license terms that feel most compatible with our values, combined with open source harnesses. AI features will be landing in Ubuntu throughout the next year as we feel that they're of sufficient maturity and quality, with a bias toward local inference by default.

AI features in Ubuntu features will come in two forms: first as a means of enhancing existing OS functionality with AI models in the background, and latterly in the form of "AI native" features and workflows for those who want them.

This year Canonical has begun a more deliberate push toward education and developing competence with AI tools. We are not setting shallow metrics on token usage, or percentages of code written with AI, but rather incentivising engineers to experiment and understand where AI tools add value. Rather than force a single early-choice AI stack, we're incentivising teams to each pick 'something different' and go deep, so we learn more as an org in the next six months.

Version 26.04 of the niri scrollable-tiling Wayland compositor has been released. The most notable change in this release, as the "most requested niri feature by far", is support for the blur effect using the Wayland protocol's ext-background-effect. This release also features optional configuration includes, screencasting support enhancements, and a number of improvements for input devices.

In short, background blur turned out to be a massive undertaking. Not because of the blur algorithm itself (by the way, if you want to learn about different blurs, including the widely used Dual Kawase, I highly recommend this blog post), but because window background effects in general required a lot of thinking and additions to the code, especially to make them as efficient as possible. This is one of the most complex niri features thus far.

LWN covered niri in July 2025.

Security updates have been issued by AlmaLinux (java-25-openjdk, kernel, osbuild-composer, thunderbird, webkit2gtk3, and wireshark), Debian (chromium, distro-info-data, libde265, mbedtls, and thunderbird), Fedora (awstats, bind9-next, bpfman, buildah, calibre, cef, chromium, composer, corosync, coturn, cups, curl, dnsdist, doctl, erlang, fido-device-onboard, flatpak-builder, freetype, glab, goose, jq, kea, libarchive, libcap, libcgif, libgsasl, libinput, libmicrohttpd, libpng, libpng12, libpng15, mapserver, mbedtls, micropython, minetest, mingw-exiv2, mingw-libpng, mingw-LibRaw, mingw-openexr, mingw-python3, moby-engine, mupdf, nginx, nginx-mod-brotli, nginx-mod-fancyindex, nginx-mod-headers-more, nginx-mod-modsecurity, nginx-mod-naxsi, nginx-mod-vts, opam, openbao, opensc, openssh, openssl, opkssh, perl-Net-CIDR-Lite, pgadmin4, pie, podman, pspp, pypy, python-biopython, python-cairosvg, python-cbor2, python-cryptography, python-flask-httpauth, python-msal, python-pillow, python-pydicom, python-tomli, python3-docs, python3.13, python3.14, python3.15, python3.9, rauc, roundcubemail, rpki-client, rust-sccache, skopeo, smb4k, stb, sudo, tcpflow, thunderbird, tigervnc, tinyproxy, trafficserver, trivy, usd, util-linux, vim, xdg-dbus-proxy, xorg-x11-server, xorg-x11-server-Xwayland, and yarnpkg), Oracle (buildah, golang, grafana, java-17-openjdk, and java-25-openjdk), and SUSE (chromium, cockpit-podman, coredns, corosync, cups, dnsdist, flatpak, freerdp2, frr, gdk-pixbuf, golang-github-prometheus-alertmanager, golang-github-prometheus-prometheus, google-guest-agent, haproxy, ignition, ImageMagick, kernel, kyverno, libcap, libminizip1, libpng16, librsvg, libXpm-devel, Mesa, opensc, openssl-3, ovmf-202602, PackageKit, podman, python-ecdsa, python-pillow, python311-Mako, sudo, thunderbird, tomcat, tomcat10, and vim).