A Kernel Potato: Ubuntu remains among the top choices for Linux distribution, offering a free, open-source solution built atop Debian. This OS caters to a diverse user base, from individual users to large corporations, and is recognized for its robustness and reliability. However, imminent changes are on the horizon.
Canonical has unveiled plans to revise its policy on Linux integration within the Ubuntu operating system. The Canonical Kernel Team (CKT), which oversees kernel issues across Ubuntu versions, intends to start employing the most current Linux kernel versions in its updates—even before the stable versions are released.
The company, based in the UK, adheres to a stringent, predetermined release timetable for Ubuntu, as outlined here. New versions are planned six months ahead, and are rarely postponed unless under exceptional circumstances. The latest LTS (Long-Term Support) release, Ubuntu 24.04, dubbed “Noble Numbat,” was launched in April 2024.
On the flip side, the Linux kernel’s development follows a more flexible, albeit generally bi-monthly, schedule governed by its own dynamics of release timing. These dates are subject to change by project overseer Linus Torvalds, especially if critical issues emerge during development stages.
A stable release schedule is essential for maintaining a dependable operating system, according to Canonical’s Brett Grandbois. Ubuntu is more than just a Linux OS for enthusiasts; it is widely used across desktops, servers, cloud infrastructures, and IoT devices in various editions.
Historically, Ubuntu has incorporated only the latest stable Linux kernel release, setting a kernel freeze about two months prior to each OS update. This method has faced criticism from users eager for the newest features and enhanced hardware compatibility offered by more recent kernel versions.
“In an effort to equip our users with the latest functionalities and hardware support, Ubuntu will now include the most current version of the upstream Linux kernel available at the time of the Ubuntu release freeze date,” announced Canonical, acknowledging that this could mean using a kernel still in Release Candidate (RC) status with existing unresolved issues.
This bold approach to kernel updates poses certain dangers, as RC versions are not finalized — a caution noted by Linus Torvalds and his development team. Despite these challenges, Canonical is committed to supporting the specific Linux versions they release as part of new Ubuntu updates. Post-release kernel upgrades are not viable due to the highly customized nature of the Linux version tailored for Ubuntu, which incorporates specialized features, patches, and hardware support from Canonical and its partners.
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