Livepatch tiers

Livepatch delivers patches through a tiered system. A tier is a target audience for patch delivery. Your tier depends on whether you have a free or paid Ubuntu Pro subscription.

Tier	Description
Proposed	The initial tier where patches are added before promotion to subsequent tiers.
Internal	For internal Canonical use. Patches are tested and applied across Canonical infrastructure to reduce the risk of a faulty patch reaching customer machines.
Updates	For free users of Ubuntu Pro. Patches are delivered to these machines after the Internal tier.
Stable	For paid users of Ubuntu Pro. Patches are delivered to these machines last.

The kernel team monitors patch health within the Internal tier before promoting to the Updates tier, and performs further monitoring before promoting to the Stable tier.

For finer-grained control over patch rollout, see the Livepatch On-Prem documentation.