"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"

"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"

ADR-0087 exemption (no-migration-prescription): a refusal of metadata-door writes the published contract already forbids, on datasources an installed package declares: no authorable key, spelling, export or stored shape moves, and no stored row is read, rewritten or converted. A row an earlier save left under a code-defined name stays readable and is removed by the operator with the door's own DELETE; which stored edit an operator meant to keep is not something a ledger entry can rewrite. The other categories are closed on facts: the package publishes (not unpublished); no ADR-0087 id covers this door (not already-registered); and the change is a door verdict, not a declaration (not runtime-interface-only or type-surface-only).