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Security updates have been issued by Debian (libreoffice), Fedora (exim and fscrypt), Red Hat (kernel), Slackware (mozilla), SUSE (docker, firefox, and podman), and Ubuntu (linux, linux-lowlatency, linux-lowlatency-hwe-5.15, linux, linux-lowlatency, linux-lowlatency-hwe-6.8, linux, linux-oem-6.11, linux-aws, linux-aws-6.8, linux-oracle, linux-oracle-6.8, linux-raspi, linux-aws, linux-gcp, linux-hwe-6.11, linux-oracle, linux-raspi, linux-realtime, linux-aws, linux-gkeop, linux-ibm, linux-intel-iotg, linux-intel-iotg-5.15, linux-oracle, linux-oracle-5.15, linux-raspi, and linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop).

Mozilla's actions have been rubbing many Firefox fans the wrong way as of late, and inspiring them to look for alternatives. There are many choices for users who are looking for a browser that isn't part of the Chrome monoculture but is full-featured and suitable for day-to-day use. For those who are willing to stay in the Firefox "family" there are a number of...

Version 136.0 of the Firefox browser has been released. Changes include a new vertical tab layout, an automatic attempt to upgrade HTTP connections to HTTPS, support for AMD GPUs on Linux, an Arm64 port for Linux, and more.

Version 6.10 of the Incus container-management system has been released. New features include better Let's Encrypt support, API-wide filtering, IOMMU support in virtual machines, and more. See this announcement for details.

Security updates have been issued by AlmaLinux (kernel), Mageia (x11-server), Red Hat (emacs and webkit2gtk3), SUSE (ffmpeg-7, govulncheck-vulndb, kernel, and skopeo), and Ubuntu (cmark-gfm, erlang, krb5, linux-gcp-6.8, linux-raspi, linux-kvm, lucene-solr, postgresql-12, postgresql-14, postgresql-16, raptor2, spip, tomcat7, and wpa).

Mozilla has issued an update to its terms of use (TOU) that were announced on February 26. It has removed a reference in the TOU to Mozilla's Acceptable Use Policy "because it seems to be causing more confusion than clarity", and has revised the TOU "to more clearly reflect the limited scope of how Mozilla interacts with user data". The new language says: You give...

One of the many new features packed into the 6.13 kernel release was guard pages, a hardening mechanism that makes it possible to inject zero-access pages into a process's address space in an efficient way. That feature only supports anonymous (user-space data) pages, though. To make guard pages more widely useful, Lorenzo Stoakes has put together a patch set enabling the feature for file-backed...

Security updates have been issued by Debian (ffmpeg, kernel, linux-6.1, mariadb-10.5, proftpd-dfsg, and xorg-server), Fedora (chromium, cutter-re, iniparser, nodejs22, rizin, webkitgtk, wireshark, xen, and xorg-x11-server), Mageia (binutils and ffmpeg), Oracle (emacs and kernel), Red Hat (emacs and webkit2gtk3), SUSE (azure-cli, bsdtar, gnutls, govulncheck-vulndb, libX11, libxkbfile, libxml2, nodejs-electron, openssh8.4, ovmf, phpMyAdmin, python, python-azure-identity, python311-jupyter-server, tiff, trivy, u-boot, and wireshark), and Ubuntu (opennds and Ruby SAML).

Differences of opinion, as well as outright disputes, between upstream open-source projects and Linux distribution packagers over packaging practices are nothing new. It is rarer, though, for those disputes to boil over to threats of legal action—but a disagreement between the Open Broadcaster Software (OBS) Studio project and Fedora packagers reached that point in mid-February. After escalation to a higher authority things have been...

There is a fair amount of unhappiness on the Internet about the announcement from Mozilla about a new "terms of use" agreement and an updated privacy notice for the Firefox browser. Firefox will always continue to add new features, improve existing ones, and test new ideas. We remain dedicated to making Firefox open source, but we believe that doing so along with an official...

Security updates have been issued by Debian (emacs, freerdp2, and gst-plugins-good1.0), Fedora (java-17-openjdk, python3.6, and xorg-x11-server-Xwayland), Mageia (radare2), SUSE (libX11, openvswitch3, postgresql13, procps, ruby2.5, webkit2gtk3, and xorg-x11-server), and Ubuntu (git, linux-aws, linux-aws, linux-aws-6.8, linux-aws, linux-oracle, linux-oracle-5.4, linux-ibm, linux-intel-iotg, linux-intel-iotg-5.15, and linux-oem-6.11).

Paul McKenney has put together a series of articles on how to improve one's ability to give a good talk at a technical conference. On the other hand, (1) presentation skills stay with you through life, and (2) small improvements in presentation skills over months or years can provide you with great advantages longer term. An old saying credited to Thomas Edison claims a...

Version 4.0 of the Fish shell has been released. Improvements include a better key-binding mechanism, the ability to tie abbreviations to a specific command, selective ignoring of commands in the history, some scripting improvements, and more. See the release notes for details.

Zotero is an open-source reference management tool designed for collecting, organizing, and citing research materials. It is particularly useful for those writing research papers, theses, or books that require a bibliography in standard formats like APA Style, Chicago Style, or MLA Format. Zotero stores bibliographic metadata, annotations, and user data and integrates with word processors like LibreOffice, Microsoft Word, and Google Docs to produce...

Intel's indirect branch tracking (IBT) is a hardware-implemented control-flow-integrity mechanism that makes it harder for an attacker to gain control of the system by way of a corrupted indirect branch. FineIBT is a software extension to IBT that is meant to improve its protection. Recently, though, Jennifer Miller reported a novel way to bypass FineIBT by taking advantage of how the kernel's system-call entry...

The 6.13.5, 6.12.17, and 6.6.80 stable kernels have been released. As usual, they contain important fixes all over the kernel tree; users of those series should upgrade.

Security updates have been issued by Debian (emacs and openh264), Fedora (rpm-ostree), Mageia (dcmtk, libcap, openssh, and proftpd), Red Hat (emacs, kernel, and pki-servlet-engine), Slackware (emacs), SUSE (chromium, ffmpeg-4, ffmpeg-7, gnutls, libiniparser-devel, procps, socat, vim, xorg-x11-server, and xwayland), and Ubuntu (binutils, libsndfile, libxmltok, and php5).

Inside this week's LWN.net Weekly Edition: Front: Tail calls in CPython; BPF cancellation; Slabs, sheaves, and barns; Atomic block writes; Large filesystem block sizes; EPEL 10 for older CPUs; pytest-mh; Open-source battery. Briefs: DMA discussion; Armbian 25.2; Gentoo qcow2; Aqualung 2.0; Emacs 30.1; Rust 1.85.0; Quotes; ... Announcements: Newsletters, conferences, security updates, patches, and more.

FOSDEM 2025 featured the usual talks about open-source software, but, as always, the conference also offered the opportunity to discover some more exotic and less software-centric topics. That's how I learned about the Flow Battery Research Collective (FBRC), which is building what will eventually become an open-source home battery. Daniel Fernández Pinto represented the collective at FOSDEM with his talk "Building an Open-Source Battery...

The Gentoo Linux project has announced the availability of qcow2 images for amd64 (x86_64) and arm64 (aarch64), and plans to "eventually" offer images for the riscv64 and loongarch64 architectures. The images, updated weekly, include an EFI boot partition and a fully functional Gentoo installation; either with no network activated but a password-less root login on the console ("no root pw"), or with network activated,...

One of the often-requested LWN site features that has languished the longest on our to-do list is full-text RSS feeds. We are happy to announce that, finally, there is a set of such feeds available; the full set can be seen on our feeds page. This is a subscriber-only feature, and it works by creating a unique fetch URL for each user. We will,...

Version 25.2 of the Armbian Linux distribution for single-board computers (SBCs) has been released. Notable changes in this release include support for many new SBCs, an upgrade to Linux kernel 6.12.x, and more. See the changelog for a complete list.

The Faster CPython project has been working to speed up the Python interpreter for the past several years. Now, Ken Jin, a member of the project, has merged a new set of changes that have been benchmarked as improving performance by 10% for some architectures. The only change is switching from using computed goto statements to using tail calls as part of the implementation...