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Canonical Launches Ubuntu Core 26 with Live Kernel Patching, Optimized Updates
Based on Ubuntu 26.04 LTS (Resolute Raccoon), Ubuntu Core 26 introduces new features like live kernel patching, enhanced hardware-backed protection for mission-critical deployments, optimized OTA updates that are now 90 percent smaller, precise Linux builds, and up to 15 years of security maintenance.
Canonical spent a lot of time optimizing Ubuntu Core 26 to improve both the speed of updates and installation time. The improved snap-delta format reduces update sizes up to 90 percent for most snaps, updates to base snaps drop from 16MB to just 1.5MB in size, and initramfs-based installations reduce installation time.
Update (by Roy)
Four more picks:
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CNX Software ☛ Ubuntu Core 26 targets IoT devices and embedded systems, offers up to 15 years of security maintenance
Canonical has just introduced Ubuntu Core 26, based on the recently-released Ubuntu 26.04 LTS and designed for IoT devices and embedded systems, with precise GNU/Linux builds, optimized OTA updates, live kernel patching, and enhanced hardware-backed protection for mission-critical deployments.
Offered with up to 15 years of security maintenance, Ubuntu Core 26 minimal, immutable operating system enables reduced installation times, 90% smaller OTA updates, and precision-led builds via Chisel. Every component is a containerized snap, just like in prior Ubuntu Core releases. Canonical says it can help companies meet requirements for the EU Cyber Resilience Act (CRA) with securely designed and private Hey Hi (AI) deployments relying on hardware-based trust.
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Ubuntu ☛ Canonical launches Ubuntu Core 26
Ubuntu Core 26 introduces precise GNU/Linux builds, optimized OTA updates, live kernel patching, and enhanced hardware-backed protection for mission-critical deployments.
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Help Net Security ☛ Canonical ships Ubuntu Core 26 with 15 years of security maintenance
Operators of industrial sensors, edge AI controllers, and connected medical equipment now have a refreshed long-term Linux option for fleets that must stay patched for more than a decade. Canonical released Ubuntu Core 26, the latest long-term supported version of its minimal, immutable operating system, with security maintenance lasting up to 15 years.
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Hackster ☛ Canonical Launches Ubuntu Core 26, Its Latest Snap-Powered Immutable Operating System
Canonical has announced the release of Ubuntu Core 26, the latest in its cut-down immutable Linux distribution originally developed with a focus on the Internet of Things (IoT).
"Ten years ago, Ubuntu Core pioneered a new OS [Operating System] security model, where every component is strictly confined, transactionally updated, and independently verifiable," says Canonical's vice president of Ubuntu engineering Jon Seager of the distribution. "Today, that approach is reflected in emerging industry standards. With Ubuntu Core 26, we continue to deliver the foundation that critical infrastructure operators need to meet the Cyber Resilience Act, run attested, immutable edge AI [Artificial Intelligence] workloads, and manage devices securely at scale."
Microsoft Canonical:
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A look into Ubuntu Core 26: Cloud-powered edge computing with AWS IoT Greengrass and Azure IoT Edge [Ed: Microsoft Canonical as Azure reseller for back doors, surveillance, and proprietary vendor lockin]
In this first blog, Michael Croft-White, Engineer Director for Canonical’s Telemetry team, will show you how Ubuntu Core integrates with both AWS IoT Greengrass and Azure IoT Edge to enable cloud-driven device management and intelligent edge workloads. With these platforms, developers gain centralised control of deployments, flexible workload orchestration, and the ability to process data locally while still leveraging the awesome power of the cloud for analytics and monitoring. Coupled with Ubuntu Core architecture, this provides an end-to-end infrastructure for managing the complete lifecycle of devices in the field.
Late coverage:
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OMG Ubuntu ☛ Ubuntu Core 26 cuts OTA update size, enables ARM64 Livepatch
Canonical has released Ubuntu Core 26, a new long-term support (LTS) version of its immutable, snap-based OS. Among the changes Ubuntu Core 26 brings is smaller over-the-air updates, with download sizes reduced by up to 90% for most snaps thanks to a new snap-delta format. Updates to the Core base snaps specifically drop from 16 MB to 1.5 MB. Installation times are faster as the initramfs-based installer skips redundant reboots during provisioning. Core 26 also enables live kernel patching on ARM64 devices so that critical and high vulnerability kernel security fixes are applied without the need for a device reboot.
Linux Magazine:
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Ubuntu Core 26 Offers Game-Changing Enterprise Features
Ubuntu Core 26 could be a game-changer for organizations looking for increased security and reliability.