---
title: "Changes to GET /udl/ionoobservation/tuple"
method: GET
path: "/udl/ionoobservation/tuple"
---

# Changes to GET /udl/ionoobservation/tuple

`GET /udl/ionoobservation/tuple`

> Every recorded change to this operation, newest first.
> 12 revisions in range; 1 could not be searched.

## Timeline

Changed in 3 of 12 revisions.

- **2026-03-25** `173e4aff893f`: 2 breaking
- **2025-05-29** `4e1cbc17e814`: 2 info
- **2025-04-16** `75f764c843a9`: 2 breaking, 2 warning, 4 info

## Changes

- **2026-03-25** `173e4aff893f`: 2 breaking
  - the `items/receiveCoordinates` response property's minItems was decreased from `3` to `0` for the response status `200`
  - the `items/transmitCoordinates` response property's minItems was decreased from `3` to `0` for the response status `200`
- **2025-05-29** `4e1cbc17e814`: 2 info
  - added the new optional `query` request parameter `firstResult`
  - added the new optional `query` request parameter `maxResults`
- **2025-04-16** `75f764c843a9`: 2 breaking, 2 warning, 4 info
  - the `items/charAtts/items/climateModelInputParams/items/` response property's maxLength was unset from `20` for the response status `200`
  - the `items/charAtts/items/climateModelOptions/items/` response property's maxLength was unset from `20` for the response status `200`
  - added the new `O` enum value to the `items/polarization/data/items/items/items/items/items/items/items/` response property for the response status `200`
  - added the new `X` enum value to the `items/polarization/data/items/items/items/items/items/items/items/` response property for the response status `200`
  - api operation id `findAllTuples_59` removed and replaced with ``
  - the endpoint scheme security `BasicAuth` was removed from the API
  - removed the `O` enum value from the `items/polarization/data` response property for the response status `200`
  - removed the `X` enum value from the `items/polarization/data` response property for the response status `200`

---

[Operation](https://skmtc.dev/bluestaq/apis/unified-data-library-services-api/docs/udl/ionoobservation/tuple/get.md) - [API](https://skmtc.dev/bluestaq/apis/unified-data-library-services-api.md) - [Page](https://skmtc.dev/bluestaq/apis/unified-data-library-services-api/changes/udl/ionoobservation/tuple/get)