"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 narrowing of the transport's CORS admission default plus a boot refusal of one configuration: no authorable metadata key, spelling, export, type or stored shape moves, so `objectstack migrate meta` has nothing to rewrite. The remedy is a deployment variable, which no ledger entry can derive. The other categories are closed on facts: the package publishes (not unpublished); no ADR-0087 id covers this door (not already-registered); and the change is an admission verdict, not an interface, a type or an export (not runtime-interface-only, type-surface-only or runtime-export-retired).