Previous value: -"One to three dataset IDs — an indicator code plus _A, _Q, or _M (UNE_DEAP_SEX_AGE_RT_A), as ilostat_search_indicators returns them. Case-insensitive; a DF_ prefix (the SDMX dataflow form) is stripped, a bare indicator code resolves when it has one frequency, and an element holding + or , joined IDs is split."New value: +"Dataset IDs, up to 100 — an indicator code plus _A, _Q, or _M (UNE_DEAP_SEX_AGE_RT_A), as ilostat_search_indicators returns them. Case-insensitive; a DF_ prefix (the SDMX dataflow form) is stripped, a bare indicator code resolves when it has one frequency, an element holding + or , joined IDs is split, and duplicates are dropped. Every ID is checked; the first 3 distinct datasets are queried and the rest come back as remaining_dataset_ids for another call."

Previous value: -3New value: +100

Previous value: -"Only the latest period per reference area and dataset (the latest quarter or month on sub-annual datasets); combines with time_from/time_to."New value: +"Only each series' latest period — a series is one dataset, reference area, sex, classif1, and classif2 code — with every row at that period (one per source under source_selection all or secondary; the latest quarter or month on sub-annual datasets); combines with time_from/time_to. When the request's full history is too large or too slow to read in one call, it falls back to the latest period per area and dataset, which can miss a series that ends earlier; applied_filters.latest_mode says which ran, and the notice says so. time_from or classif1 narrow it back under; sex or fewer ref_areas alone may still read too much and fall back."

Previous value: -"Datasets requested."New value: +"Datasets queried — at most 3."

Added value: +{
+  "description": "How latest_only was answered: per_series, each series' own latest period; latest_year, the fallback to the latest period per area and dataset, which can miss a series that ends earlier. Absent without latest_only.",
+  "enum": [
+    "per_series",
+    "latest_year"
+  ],
+  "type": "string"
+}

Previous value: -"Whether only the latest period per area was requested."New value: +"Whether only each series' latest period was requested."

Previous value: -"The requested datasets, in request order."New value: +"The queried datasets, in request order."

Previous value: -"Machine-readable failure mode. Declared by this tool: `unknown_dataset`: A dataset ID is not in the catalog, or a bare indicator code has several frequencies. `unknown_code`: A ref_areas, sex, classif1, classif2, or sources value is not in the ILOSTAT dictionaries. `unknown_area_group`: area_group is not X01, an ILO region or subregion, or a World Bank income group. `aggregates_unavailable`: An X-coded aggregate was requested from a dataset that has no aggregate rows. `invalid_period`: A sub-annual time on a dataset of another frequency, time combined with a range or latest_only, or time_from after time_to. `request_too_broad`: No filters at all and the unfiltered size exceeds the row ceiling. `result_too_large`: The filtered result passed the row ceiling while streaming. `dataset_retired`: Upstream reports a catalog dataset ID as deprecated or invalid. `upstream_busy`: The server-side pacer shed the call, or the ILOSTAT API answered 429 or a challenge page. `catalog_unavailable`: No catalog snapshot has loaded and the load failed, or the first load has not finished within 30 s. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `unknown_dataset`: Any dataset ID in dataset_ids, queried or not, is not in the catalog, or a bare indicator code has several frequencies. `unknown_code`: A ref_areas, sex, classif1, classif2, or sources value is not in the ILOSTAT dictionaries. `unknown_area_group`: area_group is not X01, an ILO region or subregion, or a World Bank income group. `aggregates_unavailable`: An X-coded aggregate was requested from a dataset that has no aggregate rows. `invalid_period`: A sub-annual time on a dataset of another frequency, time combined with a range or latest_only, or time_from after time_to. `request_too_broad`: No filters at all and the unfiltered size exceeds the row ceiling. `result_too_large`: The filtered result passed the row ceiling while streaming. `dataset_retired`: Upstream reports a catalog dataset ID as deprecated or invalid. `upstream_busy`: The server-side pacer shed the call, or the ILOSTAT API answered 429 or a challenge page. `catalog_unavailable`: No catalog snapshot has loaded and the load failed, or the first load has not finished within 30 s. Other values are possible when a failure originates below the handler."

Previous value: -"Filters that could not narrow a dataset, a unit the structure service could not supply, why nothing matched, where the full result is staged, or why reading stopped early."New value: +"Datasets left for another call, a latest_only fallback to the latest period per area and dataset, filters that could not narrow a dataset, a unit the structure service could not supply, why nothing matched, where the full result is staged, or why reading stopped early."

Added value: +{
+  "description": "Requested datasets past the first 3, as canonical IDs in request order; not fetched in this call. Pass them as dataset_ids with the same filters to get them. Absent when every requested dataset was queried.",
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}

Previous value: -"Rows the request returned — exact when the result is inline or staged; when reading stopped early (truncated), the rows read."New value: +"Rows the request returned — exact unless reading stopped early at the inline preview (summary.complete false), when it counts the rows read."

Previous value: -"False when reading stopped early, so the counts cover only the rows read."New value: +"False when reading stopped early at the inline preview, so the counts cover only the rows read."