"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): No `@objectstack/spec` key, object definition, stored row or stored shape moves: the spec's `ComponentPropsMap['object-calendar']` and `['object-gantt']` rows already refuse every key this change takes off `@object-ui/types`, so no metadata that the spec accepts carries them, and `objectstack migrate meta` has nothing to rewrite. What narrows is the `@object-ui/types` mirror of those rows: its TypeScript interfaces, its tolerant zod mirrors and, for `object-calendar`, the strict authoring face derived from them, which now refuses the five flat keys by name as the spec does. The affected party is a TypeScript author or a hand-written node, reached by the compiler and by `objectui validate`, and the renderers still read the flat spelling a host hands them. One drawing outcome moves: `getGanttConfig` validates a `gantt` block and never validated the flat spelling, so a pre-door stored view whose `options.gantt` carries a value the spec refuses now shows the refusal screen instead of drawing; that row is outside what the spec accepts, and its conversion belongs to the stored-row census of #25923, not to tolerance in a consumer. The other categories are closed on facts: the five packages publish (not unpublished); no ADR-0087 id covers this change (not registered or already-registered); and the narrowed symbols are zod-backed metadata shapes (not runtime-interface-only, type-surface-only or runtime-export-retired).