The traditional structure of a compiler forms a pipeline — parsing, type-checking, optimization, and code-generation, usually in that order. But modern programming languages have requirements that are ill-suited to such a design. Increasingly, compilers are moving toward other designs in order to support incremental compilation and low-latency responses for uses like integration into IDEs. Rust has, for the last eight years, been pursuing a particularly unusual design; in that time compile times have substantially improved, but there's still more work to be done.

Security updates have been issued by AlmaLinux (container-tools:rhel8, kernel, kernel-rt:4.18.0, kernel:4.18.0, pam, pam:1.5.1, perl-App-cpanminus, perl-App-cpanminus:1.7044, python-tornado, tigervnc, tuned, and webkit2gtk3), Debian (needrestart and webkit2gtk), Mageia (firefox, glib2.0, krb5, and thunderbird), Red Hat (firefox, postgresql, postgresql:12, postgresql:13, postgresql:15, postgresql:16, and thunderbird), SUSE (editorconfig-core-c, kernel, php7, php8, python, python-tornado6, python3-virtualenv, python310, python39, thunderbird, wget, and wireshark), and Ubuntu (firefox and haproxy).

Security updates have been issued by Debian (dnsmasq, editorconfig-core, lemonldap-ng, proftpd-dfsg, python3.9, simplesamlphp, tgt, and xfpt), Fedora (qbittorrent, webkitgtk, and wireshark), Mageia (libsoup3 & libsoup), Red Hat (buildah, grafana, grafana-pcp, and podman), SUSE (gimp, kernel, postgresql14, python, webkit2gtk3, xen, and zabbix), and Ubuntu (ansible and postgresql-12, postgresql-14, postgresql-16).

The 6.13 merge window closed with the release of 6.13-rc1 on December 1. By that time, 11,307 non-merge commits had been pulled into the mainline repository; about 9,500 of those landed after our first-half merge-window summary was written. There was a lot of new material in these patches, including architecture-support improvements, new BPF features, an efficient way to add guard pages to an address space, more Rust support, a vast number of new device drivers, and more.

Linus has released 6.13-rc1 and closed the merge window for this release. "And for once - possibly the first time ever - it looks like the release cycle doesn't clash horribly up with the holiday season, and we'll have time both to stabilize this release, _and_ the work for 6.14 won't be starting until well into January."

Version 1.83.0 of the Rust language has been released.

This release includes several large extensions to what code running in const contexts can do. This refers to all code that the compiler has to evaluate at compile-time: the initial value of const and static items, array lengths, enum discriminant values, const generic arguments, and functions callable from such contexts (const fn).

There are also quite a few new stabilized APIs.

The OpenWrt One router, which was reviewed here recently, is now generally available.

This is the first wireless Internet router designed and built with your software freedom and right to repair in mind. The OpenWrt One will never be locked down and is forever unbrickable. This device services your needs as its owner and user. Everyone deserves control of their computing. The OpenWrt One takes a great first step toward bringing software rights to your home: you can control your own network with the software of your choice, and ensure your right to change, modify, and repair it as you like.

Security updates have been issued by Debian (firefox-esr, redis, twisted, and tzdata), Fedora (firefox, nss, pam, rust-rustls, rust-zlib-rs, thunderbird, tuned, and xen), and SUSE (cobbler, kernel, libjxl-devel, libuv, postgresql12, postgresql14, postgresql15, python-waitress, seamonkey, tomcat, and tomcat10).

Earlier today, one of our subscribers, anselm, posted the one millionth item in our database during a discussion in the comments about the GPL. One million articles and comments is a big milestone — one representing twenty two years of work by both the editors of LWN and the community. I think reaching this milestone on Thanksgiving is a lovely coincidental reminder of how far LWN has come, and how that wouldn't have been possible without your support. So thank you for reading.

The long-awaited release of the GNU Image Manipulation Program (GIMP) 3.0 is on the way, marking the first major update since version 2.10 was released in April 2018. It now features a GTK 3 user interface and GIMP 3.0 introduces significant changes to the core platform and plugins. This release also brings performance and usability improvements, as well as more compatibility with Wayland and complex input sources.

Security updates have been issued by Debian (firefox-esr, netatalk, and thunderbird), Fedora (firefox, libsoup3, mingw-glib2, mingw-libsoup, mingw-python-waitress, mingw-python3, nss, perl-Module-ScanDeps, php, and python-aiohttp), Mageia (dcmtk, golang, iptraf-ng, libsndfile, microcode, php, postgresql15 & postgresql13, rapidjson, tomcat, wget, and zbar), Red Hat (openssl and openssl-fips-provider, toolbox, and webkit2gtk3), SUSE (firefox, frr, glib2, hplip, kernel, neomutt-20241114, ovmf, python-aiohttp, python-virtualenv, python310-tornado6, qemu, webkit2gtk3, and xen), and Ubuntu (mpg123 and vim).

Version 8 of the Ubuntu-based elementary OS has been released. This release includes a rewritten Dock, new window-management features, improvements in the installation and initial setup procedures for visually impaired users, as well as a new Secure Session mode:

In the Secure Session, apps will be more restricted and will require your consent for access to system features. When an app wants to listen in the background for your keystrokes, take a screenshot, record the screen, or even pick up the color from a single pixel, you will be asked first to make sure that it's okay. The Secure Session also comes with other modern features like support for Mixed DPI modes—A hotly requested feature for folks using a HiDPI notebook or tablet with a LoDPI external display—and improved support for multi-touch gestures on touch screens and tablets.

For the most part, the 6.13 merge window has gone smoothly, with relatively few problems or disagreements — other than this one, of course. There is one other exception, though, relating to the kernel's presentation of a process's command line to interested user-space observers when a relatively new system call is used. A pull request with a simple change to make that information more user-friendly ran afoul of Linus Torvalds, who has his own view of how it should be managed.

Security updates have been issued by Debian (mpg123 and php8.2), Fedora (libsndfile, mingw-glib2, mingw-libsoup, mingw-python3, and qbittorrent), Oracle (pam:1.5.1 and perl-App-cpanminus), Red Hat (firefox, thunderbird, and webkit2gtk3), Slackware (mozilla), SUSE (firefox, rclone, tomcat, tomcat10, and xen), and Ubuntu (gh, libsoup2.4, libsoup3, pygments, TinyGLTF, and twisted).

Arch Linux is popular as a base for other Linux distributions; examples of Arch-derivatives include EndeavourOS, Manjaro, Parabola, and SteamOS. There's one small problem: the control files used to describe how to build packages for Arch Linux have no stated license. That creates a bit of uncertainty about the rights and responsibilities for the downstream derivatives. So far, that doesn't seem to have been a problem, nor has it stopped other projects from assuming that reuse is allowed. However, the Arch project is looking to add some clarity by explicitly assigning a liberal license to its package sources. Currently the project is in the process of reaching out to contributors to see if they have any objections.

Mozilla has announced the release of Firefox 133.0. Notable in this release is the addition of a new anti-tracking feature, Bounce Tracking Protection, which detects trackers based on redirect behavior and automatically purges their cookies and site data to thwart tracking. The release also includes various security fixes and more.

Security updates have been issued by Debian (pypy3), Fedora (chromium, cobbler, and libsoup3), Oracle (kernel), SUSE (glib2, govulncheck-vulndb, javapackages-tools, xmlgraphics-batik, xmlgraphics- commons, xmlgraphics-fop, libblkid-devel, opentofu, php8, postgresql, postgresql16, postgresql17, thunderbird, traefik, and ucode-intel), and Ubuntu (needrestart and rapidjson).

Security updates have been issued by Debian (ansible, chromium, ghostscript, glib2.0, intel-microcode, and kernel), Fedora (dotnet9.0, needrestart, php, and python3.6), Oracle (cups, kernel, osbuild-composer, podman, python3.12-urllib3, squid, and xerces-c), Red Hat (buildah, edk2, gnome-shell, haproxy, kernel, kernel-rt, libvpx, pam, python3.11-urllib3, python3.12-urllib3, qemu-kvm, rhc-worker-script, squid:4, and tigervnc), Slackware (php), SUSE (chromedriver, chromium, dcmtk, govulncheck-vulndb, iptraf-ng, and traefik2), and Ubuntu (linux-oracle and openjdk-23).

The Linux Foundation Technical Advisory Board (TAB) has decided to "restrict Kent Overstreet's participation in the kernel development process during the Linux 6.13 kernel development cycle" based on a recommendation from the Code of Conduct committee. In particular, the scope of the restriction will be to "decline all pull requests from Kent Overstreet" during the development cycle. Overstreet is the creator and maintainer of the bcachefs filesystem.

This action stems from a message Overstreet posted back in early September that was abusive toward another kernel developer; there is a fair amount of back-and-forth about the incident and the committee's attempts to extract a public apology from Overstreet in that thread. Overstreet has published a lengthy blog post describing his side of the story.

The Linux kernel community's discussions about including Rust have gotten a lot of attention, but the kernel is not the only project wrestling with the question of whether to allow Rust. The Git project discussed the prospect in January, and then again at the Git Contributor's Summit in September. Complicating the discussion is the Git project's lack of a policy on platform support, and the fact that it does already have tools written in other languages. While the project has not committed to using or avoiding Rust, it seems like only a matter of time until maintainers will have to make a decision.