In December 2025, Canonical announced a plan to develop a universal Public Key Infrastructure called upki. Jon Seager has published an update about the project with instructions on trying it out.

In the few weeks since we announced upki, the core revocation engine has been established and is now functional, the CRLite mirroring tool is working and a production deployment in Canonical's datacentres is ongoing. We're now preparing for an alpha release and remain on track for an opt-in preview for Ubuntu 26.04 LTS.

Security updates have been issued by AlmaLinux (gimp, go-toolset:rhel8, and golang), Debian (roundcube), Fedora (gnupg2, libpng, and rsync), Mageia (dcmtk and usbmuxd), Oracle (gcc-toolset-14-binutils, gimp, gnupg2, go-toolset:ol8, golang, kernel, and openssl), Slackware (libssh, lrzip, and mozilla), SUSE (abseil-cpp, chromium, curl, elemental-toolkit, elemental-operator, expat, freerdp, iperf, libnvidia-container, libsoup, libxml2, net-snmp, openCryptoki, openssl-3, patch, protobuf, python-urllib3, python-xmltodict, python311, screen, systemd, and util-linux), and Ubuntu (alsa-lib, gnutls28, and linux-aws, linux-oracle).

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