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LWN.net

[$] Free-threaded Python: past, present, and future

Probably the biggest change for Python over the last five years or so is the advent of the "free-threaded" version of the language, which removes the global interpreter lock (GIL) and allows multiple threads to run in parallel in the interpreter. At PyCon US 2026, held in Long Beach, California in mid-May, longtime CPython core developer (and current steering council member) Thomas Wouters gave a talk about the feature. He looked at the motivation behind the GIL-removal efforts, some history, the current status of the free-threaded interpreter, and provided a prediction on where it all leads.

LWN.net

First preview release of Xfce's Wayland compositor

Brian Tarricone has announced the first preview release of xfwl4, a Wayland compositor for the Xfce desktop environment. After close to six months of work, I feel like it's ready to get some wider use, even though of course there will be bugs and missing features. Think of this as an alpha release. [...] The end goal of xfwl4 is to behave as closely as possible to an Xfce desktop running on an X server. Ideally a user could switch between the two without even knowing there's a difference. In reality, of course, it won't be quite that seamless, and there's still more work to be done to get as close as possible to that ideal. This is a first solid cut at it, at the very least.

LWN.net

[$] Reports from OSPM 2026, day one

The Power Management and Scheduling in the Linux Kernel Summit, which still goes by the historical acronym OSPM, was held in Cambridge, UK, in mid-April. As has become traditional, the presenters at that event have since written summaries of their sessions, and this work has kindly been made available to LWN for publication. The first day's sessions covered a wide range of topics, including idle-state selection, user-space schedulers with sched_ext, lock-holder preemption, and much more.

LWN.net

Security updates for Monday

Security updates have been issued by AlmaLinux (389-ds:1.4, kernel, and kernel-rt), Debian (gst-libav1.0, gst-plugins-good1.0, imagemagick, kernel, libconfig-inifiles-perl, libgd-perl, libhttp-daemon-perl, mediawiki, pillow, and squid), Fedora (389-ds-base, alertmanager, ansible-core, buildah, chromium, erlang-cowboy, erlang-cowlib, erlang-gun, freerdp, kubernetes1.33, kubernetes1.34, kubernetes1.35, mingw-SDL2_image, ongres-scram, ongres-stringprep, openssl, perl-Config-IniFiles, perl-Crypt-PBKDF2, podman, postgresql-jdbc, python3.13, strongswan, webkitgtk, xdg-desktop-portal, and yt-dlp), Red Hat (osbuild-composer), SUSE (alloy, amazon-ssm-agent, ansible-core, apache-sshd, jpgpj, azure-storage-azcopy, chromedriver, containerized-data-importer, firefox, glibc, graphite2, inspektor-gadget, kubevirt, lemon, openvswitch, python-starlette, python311, python311-joserfc, python313, and tinyproxy), and Ubuntu (netatalk).

Phoronix

Benchmarking Bcachefs 1.38.6: The First Release No Longer "Experimental"

Released last week was Bcachefs 1.38.6 with a host of performance improvements to this out-of-tree, copy-on-write file-system. Given all the performance improvements and this being the first release since Kent Overstreet dropped the "experimental" flag on the file-system, I decided to fire up some benchmarks looking at how the Bcachefs file-system performance has changed with this new version.

Phoronix

AMD Updates ROCDXG To Deliver Better ROCm Experience On WSL

Back in March AMD introduced ROCDXG to improve their Windows Subsystem for Linux support. This improved Windows Subsystem for Linux "WSL" support with the ROCm compute stack is a cleaneer architecture, open-source compared to their legacy WSL code having closed bits, and more robust handling. Today they issued a new ROCDXG library release to further enhance their WSL support...