"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 (already-registered): the one metadata-facing half of this change is a row of AGGREGATE_FIELD_TYPE_COMPATIBILITY narrowing, and that family's hand-migration is already registered under protocol major 18 by this id: "an aggregate the field's type accepts, per AGGREGATE_FIELD_TYPE_COMPATIBILITY", with every refused pair of the table refused at the compile door. The non-temporal sum / avg narrowing rode the same id the same way; this diff amends that entry's surface and acceptance prose to name the count_distinct rider, and corrects the min / max entry's route that called count_distinct valid over every type. The engine-door halves refuse a query shape, not a stored one: no authorable key, export or stored row moves.