---
title: "Changes to ✨ Append saved interface versions"
method: POST
path: "/api/interfaces/{id}/append_versions/"
---

# Changes to ✨ Append saved interface versions

`POST /api/interfaces/{id}/append_versions/`

> Every recorded change to this endpoint, newest first.
> 98 revisions in range; 1 not diffed.

## Timeline

Changed in 5 of 98 revisions.

- **2026-07-08** `b5f055b9d45b` — 1 breaking
- **2026-07-06** `c2893748a8d3` — 1 breaking
- **2026-05-18** `c7f74f79b529` — 3 info
- **2026-05-08** `1679e894ea40` — 9 info
- **2026-05-07** `4d2f235ae6c4` — 1 info

## Changes

- **2026-07-08** `b5f055b9d45b` — 1 breaking
  - the response property `created_by/allOf[#/components/schemas/UserSimple]/avatar` became nullable for the status `200`
- **2026-07-06** `c2893748a8d3` — 1 breaking
  - for the `path` request parameter `id`, the type/format was changed from `string`/`` to `integer`/``
- **2026-05-18** `c7f74f79b529` — 3 info
  - added the new optional request property `versions/items/screenParams` (media type: application/json)
  - added the new optional request property `versions/items/screenParams` (media type: application/x-www-form-urlencoded)
  - added the new optional request property `versions/items/screenParams` (media type: multipart/form-data)
- **2026-05-08** `1679e894ea40` — 9 info
  - added the new optional request property `metadata` (media type: application/json)
  - added the new optional request property `metadata` (media type: application/x-www-form-urlencoded)
  - added the new optional request property `metadata` (media type: multipart/form-data)
  - added the new optional request property `title` (media type: application/json)
  - added the new optional request property `title` (media type: application/x-www-form-urlencoded)
  - added the new optional request property `title` (media type: multipart/form-data)
  - added the new optional request property `versions/items/unpublished` (media type: application/json)
  - added the new optional request property `versions/items/unpublished` (media type: application/x-www-form-urlencoded)
  - added the new optional request property `versions/items/unpublished` (media type: multipart/form-data)
- **2026-05-07** `4d2f235ae6c4` — 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/humansignal/apis/label-studio-api/docs/api/interfaces/:id/append_versions/post.md) · [API](https://skmtc.dev/humansignal/apis/label-studio-api.md) · [Page](https://skmtc.dev/humansignal/apis/label-studio-api/changes/api/interfaces/:id/append_versions/post)