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LWN.net

10 Years of Let's Encrypt Certificates

Let's Encrypt has published a retrospective that covers the decade since it published its first publicly trusted certificate in September 2015: In March 2016, we issued our one millionth certificate. Just two years later, in September 2018, we were issuing a million certificates every day. In 2020 we reached a billion total certificates issued and as of late 2025 we're frequently issuing ten million certificates per day. We're now on track to reach a billion active sites, probably sometime in the coming year.

LWN.net

Kroah-Hartman: Linux CVEs, more than you ever wanted to know

Greg Kroah-Hartman is writing a series of blog posts about Linux becoming a Certificate Numbering Authority (CNA): It's been almost 2 full years since Linux became a CNA (Certificate Numbering Authority) which meant that we (i.e. the kernel.org community) are now responsible for issuing all CVEs for the Linux kernel. During this time, we've become one of the largest creators of CVEs by quantity, going from nothing to number 3 in 2024 to number 1 in 2025. Naturally, this has caused some questions about how we are both doing all of this work, and how people can keep track of it. So far, Kroah-Hartman has published the introductory post, as well as a detailed post about kernel version numbers that is well worth reading.

OMG! Ubuntu

Two Ubuntu Flavours Won’t Be LTS Releases Next Year

Not all of Ubuntu’s flavours have applied for long-term support status in next year’s 26.04 release. Per the outcome of a recent Ubuntu Technical Board meeting, only 7 of the 10 official offshoots are designated LTS releases: — Oh, and the ‘oh yeah, that’s a flavour’ flavour: (No shade; I just always forget about little ol’ Kylin). However, two Ubuntu flavours did not apply for LTS status for 26.04: No Ubuntu Unity LTS? Expected in light of challenges facing the distro (there was no Ubuntu Unity 25.10 release) because the incumbent project lead is, reportedly, now busy with higher education. […]

LWN.net

[$] Mix and match Linux distributions with Distrobox

Linux containers have made it reasonably easy to develop, distribute, and deploy server applications along with all the distribution dependencies that they need. For example, anyone can deploy and run a Debian-based PostgreSQL container on a Fedora Linux host. Distrobox is a project that is designed to bring the cross-distribution compatibility to the desktop and allow users to mix-and-match Linux distributions without fussing with dual-booting, virtual machines, or multiple computers. It is an ideal way to install additional software on image-based systems, such as Fedora's Atomic Desktops or Bazzite, and also provides a convenient way to move a development environment or favorite applications to a new system.

Phoronix

Qt Toolkit Lands IO_uring Abstraction

The newest feature to land in the cross-platform Qt toolkit is QIORing as an abstraction for Linux's IO_uring interface. This QIORing may also end up supporting Microsoft's Windows IORing implementation as well...

LWN.net

Security updates for Wednesday

Security updates have been issued by AlmaLinux (abrt and kernel), Debian (libpng1.6, libsoup2.4, pdns-recursor, webkit2gtk, and wordpress), Fedora (imhex, libwebsockets, lunasvg, python3-docs, and python3.14), Mageia (python3 and webkit2), Red Hat (abrt, firefox, mysql8.4, and postgresql:15), Slackware (mozilla), SUSE (gegl, gnutls, go1.24, go1.25, libpng16-16, openssh, postgresql13, python-Jinja2, and sssd), and Ubuntu (fonttools and netty).

Foss Force

VLC 3.0.22: Dark Mode, Game Music, and Smoother Playback

This week’s App of the Week takes a fresh look at VLC 3.0.22, from dark mode on Plasma and Cosmic to niche perks like proper playback of classic Doom and Hexen music files. The post VLC 3.0.22: Dark Mode, Game Music, and Smoother Playback appeared first on FOSS Force.