What follows is a public spec related to the Ubuntu Server seeds. It does not contain specific definitions about seeds, how they relate to the ISOs, nor a long history. It is an implementation spec to show changes planned for 25.10. This is separated into sections: changes for 25.10 and Future. there are also tags with => showing expected change times. Anything in the future is very loose, while those marked for 25.10 will have an MP up in short time. Now on to the spec. Server Seed Abstract ...| Ubuntu Community Hub
Earlier this year, Canonical’s Ubuntu Engineering organisation gained a new team, seeded with some of our most prolific contributors to Ubuntu. Debcrafters is a new team dedicated to the maintenance of the Ubuntu Archive. The team’s primary goal is to maintain the health of the Ubuntu Archive, but its unique construction aims to attract a broad range of Linux distribution expertise; contributors to distributions like Debian, Arch Linux, NixOS and others are encouraged to join the team, an...| Ubuntu Community Hub
Understanding the AppArmor user namespace restriction feature Ubuntu 23.10 and 24.04 LTS introduced new AppArmor-based features to reduce the attack surface presented by unprivileged user namespaces in the Linux kernel. Unprivileged user namespaces are a feature in the Linux kernel that was introduced in order to provide additional sandboxing functionality for programs such as container runtimes; it enables unprivileged users to gain administrator (root) permissions within a confined environm...| Ubuntu Community Hub
With Ubuntu 25.10 “Questing Quokka,” we are taking a significant step forward in the evolution of the Ubuntu Desktop by removing the Xorg-based Ubuntu session. Starting with this release the “Ubuntu” session in GDM will run exclusively on Wayland. This decision follows upstream GNOME’s roadmap and aligns with our long-term strategy of delivering a secure, performant, and modern desktop experience. Why We’re Making This Change Over the past several cycles, the Wayland experience ha...| Ubuntu Community Hub
Plucky Puffin Release Notes Dedication Subscribers to the ubuntu-{devel-}announce mailing list and long term participants in the Ubuntu community will have come across Steve Langasek’s work. Steve, known in the community as vorlon, was a long-term member of the Release team (along with being a member of Archive Admin, Techboard, SRU team, and so on) and a colleague to many of us at Canonical. As a member of the Release team, Steve was responsible for devising many of the processes, policies...| Ubuntu Community Hub
Last month I published Engineering Ubuntu For The Next 20 Years, which outlines four key themes for how I intend to evolve Ubuntu in the coming years. In this post, I’ll focus on “Modernisation”. There are many areas we could look to modernise in Ubuntu: we could focus on the graphical shell experience, the virtualisation stack, core system utilities, default shell utilities, etc. Over the years, projects like GNU Coreutils have been instrumental in shaping the Unix-like experience that...| Ubuntu Community Hub
This document was prepared in collaboration with Ubuntu community leads. Executive summary Your Ubuntu LTS is still secured in exactly the same way it has always been, with five years of free security updates for the ‘main’ packages in the distribution, and best-effort security coverage for everything else. This has been the promise of Ubuntu since our first LTS in 2006, and remains exactly the same. In fact, thanks to our expanded security team, your LTS is better secured today than ever...| Ubuntu Community Hub
Oracular Oriole Release Notes Table of Contents Introduction New features in 24.10 Known Issues Official flavours More information Introduction These release notes for Ubuntu 24.10 (Oracular Oriole) provide an overview of the release and document the known issues with Ubuntu and its flavours. Support lifespan Ubuntu 24.10 will be supported for 9 months until July 2025. If you need long term support, we recommend you use Ubuntu 24.04.1 LTS which is supported until at least 2029. Upgrades Up...| Ubuntu Community Hub
Overview One of the most significant changes in the new Ubuntu 24.04 generic kernel is the availability of additional low-latency tunable settings (Bug #2051342 “Enable lowlatency settings in the generic kernel” : Bugs : linux package : Ubuntu). These options enable dynamic adjustment of the generic Ubuntu kernel to suit different performance profiles, using specific boot-time or run-time parameters, eliminating the need for kernel recompilation. NOTE: as mentioned in a previous post (Ena...| Ubuntu Community Hub
Ubuntu Noble Numbat Release Schedule Week Date (Thursday) 24.04 events October 2023 1 October 26 Toolchain Uploaded November 2023 2 November 02 3 November 09 4 November 16 5 November 23 6 November 30 December 2023 7 December 07 8 December 14 9 December 21 10 December 28 Ubuntu Testing Week (optional) January 2024 11 January 04 12 January 11 13 January 18 14 January 25 February 2024 15 February 01 16 February 08 17 February...| Ubuntu Community Hub
Hirsute Hippo Release Notes Introduction These release notes for Ubuntu 21.04 (Hirsute Hippo) provide an overview of the release and document the known issues with Ubuntu and its flavours. Dedication Subscribers to the ubuntu-announce mailing list and long term participants in the Ubuntu community will have come across Adam Conrad’s work. Adam, known in the community as infinity, was a long-term member of the release team and colleague to many of us at Canonical. As a member of the release ...| Ubuntu Community Hub
Mantic Minotaur Release Notes Table of Contents Introduction New features in 23.10 Known Issues Official flavours More information Introduction These release notes for Ubuntu 23.10 (Mantic Minotaur) provide an overview of the release and document the known issues with Ubuntu and its flavours. Support lifespan Ubuntu 23.10 will be supported for 9 months until July 2024. If you need Long Term Support, we recommend you use Ubuntu 22.04 LTS instead. New features in 23.10 Updated Packages add-ap...| Ubuntu Community Hub
Lunar Lobster Release Notes Table of Contents Introduction New features in 23.04 Known Issues Official flavours More information Introduction These release notes for Ubuntu 23.04 (Lunar Lobster) provide an overview of the release and document the known issues with Ubuntu and its flavours. Support lifespan Ubuntu 23.04 will be supported for 9 months until January 2024. If you need Long Term Support, it is recommended you use Ubuntu 22.04 LTS instead. New features in 23.04 Updated Packages Lin...| Ubuntu Community Hub
Jammy Jellyfish Release Notes Table of Contents Introduction Get Ubuntu 22.04 LTS Upgrading from Ubuntu 21.10 New features in 22.04 LTS Known Issues Official flavours More information Introduction These release notes for Ubuntu 22.04 LTS (Jammy Jellyfish) provide an overview of the release and document the known issues with Ubuntu and its flavours. For details of the changes applied since 20.04, please see the 22.04.4 change summary. The change summary for 22.04.1, 22.04.2 and 22.04.3 are ava...| Ubuntu Community Hub
Kinetic Kudu Release Notes Introduction These release notes for Ubuntu 22.10 (Kinetic Kudu) provide an overview of the release and document the known issues with Ubuntu and its flavours. Support lifespan Ubuntu 22.10 will be supported for 9 months until July 2023. If you need Long Term Support, it is recommended you use Ubuntu 22.04 LTS instead. New features in 22.10 Updated Packages Linux kernel 🐧 Ubuntu 22.10 is shipped with the new 5.19 Linux kernel that brings the following ...| Ubuntu Community Hub
