2026-04-17 23:53:30
Shor's algorithm is the main practical example of an algorithm that runs more quickly on a quantum computer than a classical computer — at least in theory. Shor's algorithm allows large numbers to be factored into their component prime factors quickly. In reality, existing quantum computers do not have nearly enough memory to factor interesting numbers using Shor's algorithm, despite decades of research. A new paper provides a major step in that direction, however. While still impractical on today's quantum computers, the recent discovery cuts the amount of memory needed to attack 256-bit elliptic-curve cryptography by a factor of 20. More interesting, however, is that the researchers chose to publish a zero-knowledge proof demonstrating that they know a quantum circuit that shows these improvements, rather than publishing the actual knowledge of how to do it.
2026-04-17 21:34:00
One of the more significant changes in the 7.0 kernel release is to use the lazy-preemption mode by default in the CPU scheduler. The scheduler developers have wanted to reduce the number of preemption modes for years, and lazy preemption looks like a step toward that goal. But then there came this report from Salvatore Dipietro that lazy preemption caused a 50% performance regression on a PostgreSQL benchmark. Investigation showed that the situation is not actually so grave, but the episode highlights just how sensitive some workloads can be to configuration changes; there may be surprises in store for other users as well.
2026-04-17 21:33:38
Security updates have been issued by AlmaLinux (.NET 8.0, .NET 9.0, freerdp, libarchive, and thunderbird), Debian (chromium, openssh, and thunderbird), Fedora (aurorae, bluedevil, breeze-gtk, buildah, cockpit, extra-cmake-modules, flatpak-kcm, grub2-breeze-theme, kactivitymanagerd, kcm_wacomtablet, kde-cli-tools, kde-gtk-config, kdecoration, kdeplasma-addons, kf6, kf6-attica, kf6-baloo, kf6-bluez-qt, kf6-breeze-icons, kf6-frameworkintegration, kf6-kapidox, kf6-karchive, kf6-kauth, kf6-kbookmarks, kf6-kcalendarcore, kf6-kcmutils, kf6-kcodecs, kf6-kcolorscheme, kf6-kcompletion, kf6-kconfig, kf6-kconfigwidgets, kf6-kcontacts, kf6-kcoreaddons, kf6-kcrash, kf6-kdav, kf6-kdbusaddons, kf6-kdeclarative, kf6-kded, kf6-kdesu, kf6-kdnssd, kf6-kdoctools, kf6-kfilemetadata, kf6-kglobalaccel, kf6-kguiaddons, kf6-kholidays, kf6-ki18n, kf6-kiconthemes, kf6-kidletime, kf6-kimageformats, kf6-kio, kf6-kirigami, kf6-kitemmodels, kf6-kitemviews, kf6-kjobwidgets, kf6-knewstuff, kf6-knotifications, kf6-knotifyconfig, kf6-kpackage, kf6-kparts, kf6-kpeople, kf6-kplotting, kf6-kpty, kf6-kquickcharts, kf6-krunner, kf6-kservice, kf6-kstatusnotifieritem, kf6-ksvg, kf6-ktexteditor, kf6-ktexttemplate, kf6-ktextwidgets, kf6-kunitconversion, kf6-kuserfeedback, kf6-kwallet, kf6-kwidgetsaddons, kf6-kwindowsystem, kf6-kxmlgui, kf6-modemmanager-qt, kf6-networkmanager-qt, kf6-prison, kf6-purpose, kf6-qqc2-desktop-style, kf6-solid, kf6-sonnet, kf6-syndication, kf6-syntax-highlighting, kf6-threadweaver, kgamma, kglobalacceld, kinfocenter, kmenuedit, knighttime, kpipewire, krdp, kscreen, kscreenlocker, ksshaskpass, ksystemstats, kwayland, kwayland-integration, kwin, kwin-x11, kwrited, layer-shell-qt, libexif, libkscreen, libksysguard, libplasma, nix, ocean-sound-theme, oxygen-sounds, pam-kwallet, plasma-activities, plasma-activities-stats, plasma-breeze, plasma-browser-integration, plasma-desktop, plasma-dialer, plasma-discover, plasma-disks, plasma-drkonqi, plasma-firewall, plasma-integration, plasma-keyboard, plasma-login-manager, plasma-milou, plasma-mobile, plasma-nano, plasma-nm, plasma-oxygen, plasma-pa, plasma-print-manager, plasma-sdk, plasma-setup, plasma-systemmonitor, plasma-systemsettings, plasma-thunderbolt, plasma-vault, plasma-welcome, plasma-workspace, plasma-workspace-wallpapers, plasma-workspace-x11, plasma5support, plymouth-kcm, plymouth-theme-breeze, podman, polkit-kde, powerdevil, qqc2-breeze-style, sddm-kcm, skopeo, spacebar, spectacle, thunderbird, and xdg-desktop-portal-kde), Mageia (cockpit-338), Oracle (capstone, cockpit, firefox, fontforge, freerdp, golang-github-openprinting-ipp-usb, kernel, nghttp2, nodejs:20, nodejs:24, openexr, and squid), Red Hat (gnutls, libarchive, libpng, libpng12, libpng15, libtiff, libvpx, libxslt, multiple packages, python, python3, python3.11, python3.12, and python3.9), Slackware (libxml2), SUSE (apache-pdfbox, azure-storage-azcopy, corosync, cups, freerdp, iproute2, libsdb2_4_2, libtpms, NetworkManager, openssl-1_1, ovmf, plexus-utils, python, python-CairoSVG, python-jwcrypto, python-PyJWT, python-pyOpenSSL, python-urllib3, python3, python314, rust1.93, shim, smc-tools, terraform-provider-local, terraform-provider-random, terraform-provider-tls, thunderbird, tiff, util-linux, and vim), and Ubuntu (libowasp-esapi-java, linux, linux-aws, linux-aws-5.15, linux-gcp, linux-gke, linux-gkeop, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux, linux-aws, linux-aws-6.8, linux-gcp, linux-gke, linux-gkeop, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8, linux, linux-realtime, linux-aws-fips, linux-fips, linux-gcp-fips, linux-fips, linux-gcp-fips, linux-gcp, linux-gcp-6.17, linux-hwe-5.15, linux-intel-iot-realtime, linux-realtime, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-nvidia-tegra, linux-nvidia-tegra, linux-nvidia-tegra-igx, linux-realtime, linux-realtime-6.8, linux-realtime-6.17, ofono, and ruby-rack).
2026-04-17 01:24:06
Version 1.95.0 of the Rust language has been released. Changes include the addition of a cfg_select! macro, the capability to use if let guards to allow conditionals based on pattern matching, and many newly stabilized APIs. See the release notes for a full list of changes.
2026-04-16 23:04:34
Version 15.0 of the Forgejo code-collaboration platform has been released. Changes include repository-specific access tokens, a number of improvements to Forgejo Actions, user-interface enhancements, and more. Forgejo 15.0 is considered a long-term-support (LTS) release, and will be supported through July 15, 2027. The previous LTS, version 11.0, will reach end of life on July 16, 2026. See the announcement and release notes for a full list of changes.
2026-04-16 21:19:47
The 7.1 merge window opened on April 12 with the release of the 7.0 kernel. Since then, 3,855 non-merge changesets have been pulled into the mainline repository for the next release. This merge window is thus just getting started, but there has still been a fair amount of interesting work moving into the mainline.