Ubuntu Brings Livepatch to Arm64 Systems

*Canonical now lets Arm64 servers apply kernel patches without downtime, extending a service previously limited to x86 hardware.*

Ubuntu Livepatch removes the requirement to reboot after kernel updates. The change applies to machines that run on Arm64 processors and need continuous uptime.

The service targets critical workloads where even brief interruptions carry cost. Operators can now keep Arm64 instances online while security fixes take effect at the kernel level.

Prior versions of Livepatch covered only x86 architectures. The addition of Arm64 support widens the set of servers that can avoid scheduled maintenance windows for kernel maintenance.

No on-record statements from Canonical appear in the source material, and no performance numbers or adoption figures are supplied.

Why it matters

Livepatch on Arm64 reduces one practical barrier for teams that have moved production workloads to Arm servers. The change matters most to operators who already treat reboots as expensive; it does not alter the underlying requirement to test patches or manage subscription access. For everyone else the benefit remains narrow.

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Sources:

• Neowin

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