Ubuntu 24.04.5 LTS Released With Linux 7.0 Kernel and Latest Security Updates

Key Takeaways

• Canonical has released Ubuntu 24.04.5 LTS, the fifth maintenance update for the “Noble Numbat” long-term support series.
• The primary enhancement is an updated Hardware Enablement (HWE) stack, now leveraging the Linux 7.0 kernel and Mesa 26.2 graphics, providing improved support for modern hardware.
• This release integrates a substantial number of security patches and bug fixes directly into the installation media, reducing post-installation update burdens.
• Existing Ubuntu 22.04 LTS users will receive an automatic upgrade prompt to 24.04.5.
• Standard support for 24.04 LTS extends to May 2029, with Extended Security Maintenance (ESM) available until 2034 for Ubuntu Pro subscribers.

Ubuntu 24.04.5 LTS: A Focus on Stability and Modern Hardware Support

Canonical has officially launched Ubuntu 24.04.5 LTS, marking the fifth significant maintenance release for its “Noble Numbat” long-term support operating system. This update delivers a refreshed installation image, pre-loaded with critical security patches, essential bug fixes, and an enhanced hardware enablement stack, now powered by the Linux 7.0 kernel.

For a distribution that forms the backbone of countless servers, cloud deployments, and desktop environments globally, this point release prioritizes stability, security, and hardware compatibility over introducing new features. It ensures systems remain current and secure without necessitating a disruptive major version upgrade.

Kernel Upgrades and Dual-Stack Strategy

A central component of Ubuntu 24.04.5 is the advancement of its Hardware Enablement (HWE) kernel stack to Linux 7.0. This kernel, along with the Mesa 26.2 graphics stack, is backported from the forthcoming Ubuntu 26.04 LTS “Resolute Raccoon” release, offering superior support for contemporary hardware components and improved GPU performance.

Crucially, systems configured with the General Availability (GA) kernel will continue to operate on the original 6.8 series that debuted with 24.04.0. This dual-kernel strategy is fundamental to Ubuntu’s LTS philosophy, catering to diverse organizational needs. Enterprises prioritizing unwavering stability and minimal kernel changes can adhere to the GA kernel. Conversely, those requiring compatibility with the latest CPUs, GPUs, and peripherals can opt for the HWE kernel, which now tracks Linux 7.0.

The updated installation media also incorporates modern toolchain components, including GCC 14, glibc 2.39, Rust 1.75, and Python 3.12 as the default interpreter. This ensures developers can immediately leverage current language runtimes.

Canonical’s Livepatch service already supports the 7.0 HWE kernel across x86-64 architectures, enabling supported configurations to apply high-severity kernel vulnerabilities without requiring a system reboot.

Integrated Security and Streamlined Deployments

In line with Canonical’s approach to point releases, 24.04.5 integrates a substantial collection of security corrections and critical bug fixes directly into the installer. This significantly reduces the need for extensive post-installation updates, streamlining deployment for new systems.

While the release notes do not explicitly list specific CVEs or bug-tracker IDs, security teams needing to verify particular patches for compliance purposes should consult Canonical’s detailed release notes and the Ubuntu Security Notices archive.

For organizations managing extensive fleets, the practical benefit of reimaging with the new 24.04.5 media is the elimination of an initial round of downloads. Systems already running Ubuntu 24.04 and receiving regular updates will automatically receive these same fixes during their next update cycle.

Broad Availability and Support Lifecycle

Ubuntu 24.04.5 LTS is not limited to the core desktop and server editions. Nine official community flavors, including Kubuntu, Xubuntu, Ubuntu MATE, Lubuntu, Ubuntu Kylin, Ubuntu Studio, Edubuntu, Ubuntu Cinnamon, Ubuntu Budgie, and Ubuntu Unity, have also been updated to version 24.04.5. Each flavor includes specific release notes detailing desktop environment adjustments and application updates.

Existing users of Ubuntu 22.04 LTS will receive an automatic upgrade prompt to 24.04.5 via the Update Manager, with the upgrade process remaining free of charge.

It is important for IT planners to note that the five-year maintenance period for Ubuntu Desktop, Server, Cloud, and Core editions commenced with the original 24.04 LTS release in April 2024, not with this September 2026 point release. This means standard security support will continue through May 2029. Community flavors typically receive a three-year support window from the same initial release date. Organizations requiring extended coverage beyond these periods can subscribe to Canonical’s Expanded Security Maintenance (ESM) through Ubuntu Pro, extending support to a full decade.

What You Should Do

• For New Deployments: Utilize the new Ubuntu 24.04.5 LTS installation media to benefit from pre-integrated security patches and updated hardware enablement, minimizing post-installation updates.
• For Existing 24.04 Installations: Ensure your systems are configured for regular updates. The security fixes and other improvements will be delivered automatically through your standard update cycle.
• For 22.04 LTS Users: Monitor for the automatic upgrade notification to 24.04.5 via the Update Manager and initiate the upgrade when ready.
• Evaluate HWE Kernel Adoption: Assess your hardware and compatibility requirements to determine if migrating to the Linux 7.0 HWE kernel is beneficial for your environment.
• Verify Patch Levels: For compliance or specific security auditing, cross-reference Canonical’s official release notes and the Ubuntu Security Notices archive to confirm the inclusion of specific patches.
• Review Support Lifecycle: Be aware that standard support for 24.04 LTS ends in May 2029. If longer support is required, investigate Canonical’s Expanded Security Maintenance (ESM) options via Ubuntu Pro.

Disclaimer: HackersRadar reports on cybersecurity threats and incidents for informational and awareness purposes only. We do not engage in hacking activities, data exfiltration, or the hosting or distribution of stolen or leaked information. All content is based on publicly available sources.