"Previously, the maintenance period for an LTS release consisted of five years of regular security updates followed by five years via the ESM (Expanded Security Maintenance) service. In 2024, the Legacy add-on was introduced, enabling two additional years of support, bringing the total to twelve years. Canonical has now announced that the additional period will be extended to five years, bringing the total to fifteen years."
"Throughout these fifteen years, Ubuntu Pro provides continuous security maintenance across the entire Ubuntu base, the kernel, and key open-source components. Canonical's security team states that they actively scan, triage, and backport vulnerabilities (critical, high, and selected medium) so that organizations can maintain security without being forced to perform disruptive major upgrades that could compromise compatibility or certification. Break/fix support remains an optional add-on component that provides access to Canonical's support team in the event of production issues."
The support period for Ubuntu LTS releases now totals fifteen years under Ubuntu Pro, applying from Ubuntu 14.04 LTS onwards. Original maintenance combined five years of regular security updates and five years of ESM; a Legacy add-on introduced in 2024 initially added two years to reach twelve years. The Legacy add-on has been extended from two to five years, increasing the total support window to fifteen years. Ubuntu Pro provides continuous security maintenance across the Ubuntu base, the kernel, and key open-source components, with a security team that scans, triages, and backports critical, high, and selected medium vulnerabilities. Break/fix support remains optional and the Legacy add-on’s scope is unchanged; no changes are required for existing Ubuntu Pro subscriptions.
Read at Techzine Global
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