"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): This diff moves `.objectui-sha` and the artefacts that travel with it: this console changeset, the regenerated `sdui.manifest.json` and its record `scripts/sdui-manifest.record.json`, the re-recorded `packages/sdui-parser/objectui-lockstep.json` (objectui's `packages/sdui-parser/src` is byte-identical across the range) and the re-measured pin citations in `packages/spec/src`, which carry their own `@objectstack/spec` patch changeset. It adds, removes or renames no ObjectStack-authorable key: no Zod schema, no spec declaration and no stored `sys_metadata` shape moves in it, so `objectstack migrate meta` has nothing here to rewrite, and this body carries no FROM/TO prescription of its own. The range carries five declared-breaking objectui changes: four changesets carry the author's breaking annotation, and a fifth commit's subject carries `!` (objectui#8347, `b403bb36f`, whose changeset states `Clause-②: yes (narrowing)` without the word). Each is objectui's own package surface, with its upstream record, and each is answered here: (1) objectui#11615 (`9dfaca654`): `ObjectFormSection.fields` gains the spec's `FormFieldInput` arm, which breaks TypeScript readers of that objectui type; no code in this repository imports `@object-ui/types`. The default `simple` form now draws a self-describing inline section entry, as the other five form types already did; no example in this repository authors a `simple` `object-form` with an inline section entry, and no authored document has to change. (2) objectui#11266 (`9db9ff3f9`): objectui's zod and TypeScript faces judge a form view's `subforms[].columns` entry by `@objectstack/spec`'s own `InlineGridColumnSchema`, the closed shape this repository has enforced since objectstack#20927, so objectui's validator now gives the verdict `os validate` already gave; the ObjectStack accept set does not move. (3) objectui#11608 (`8b14aecbd`): `PartialSchema` leaves `@object-ui/types`; nothing in this repository names it. (4) objectui#11610 (`2abec3a96`, objectui#11614): the `grid` widget's eight field-level keys are camelCase, and the snake_case spellings are refused by name. The ObjectStack runtime form field (`buildObjectFormRuntimeField`, `ui/component.zod.ts`) already refuses the snake_case spellings by name, with guidance naming objectui#11610, so no document this contract admits carries them. The camelCase spellings are not declared there yet: until objectstack#21768 declares them, an ObjectStack-authored `grid` field takes its `columns` and the widget's own defaults. That declaration widens a closed field and carries its own record. (5) objectui#8347 (`b403bb36f`): `BaseSchema` loses its index signature, a TypeScript narrowing of objectui's node types; no code in this repository compiles against them, and objectui's zod faces keep their accept sets for every key but `visibleWhen`, which widens on both to the `{ dialect, source }` envelope this repository's own parse writes. Where an entry mirrors an ObjectStack key, the ledger entry belongs to the `packages/spec` PR that lands it, never to the pin bump. Scope of the claim, stated rather than implied: it is a claim about THIS diff, not a per-entry re-measurement of the upstream declared-breaking entries.