"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 severity change on an existing diagnostic of the html-tier compiler: no authorable key, input declaration, export or stored shape is removed, renamed or re-shaped, so there is no tombstone and nothing for `objectstack migrate meta` to rewrite. The values now refused live inside a page's `source` string, which no ledger entry reads, and which value the author meant (an object, a number, a boolean) is authoring intent no conversion can supply. The in-tree authored population is zero: every `kind: 'html'` page in the example apps and every html example in the published skills compiles without a type mismatch against the committed `sdui.manifest.json` (census on the PR). The other categories are closed on facts: the package publishes (not unpublished); no ADR-0087 id covers a compiler severity and this diff adds none (not registered / already-registered); and the change is compiler behaviour, not a runtime interface or a type surface alone (not runtime-interface-only / type-surface-only).