---
title: "Changes to Upload file"
method: POST
path: "/files"
---

# Changes to Upload file

`POST /files`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 88 revisions.

- **2026-10-06** `487892d3954e`: 3 info
- **2026-10-06** `36a5d34b49b8`: 1 breaking
- **2026-10-05** `7f654af7f94f`: 1 warning, 7 info

## Changes

- **2026-10-06** `487892d3954e`: 3 info
  - added the optional property `error/misalignment/review_target` to the response with the `400` status
  - added the optional property `error/misalignment/review_target` to the response with the `429` status
  - added the optional property `error/misalignment/review_target` to the response with the `500` status
- **2026-10-06** `36a5d34b49b8`: 1 breaking
  - the response property `bytes` became nullable for the status `200`
- **2026-10-05** `7f654af7f94f`: 1 warning, 7 info
  - added the new `user_data` enum value to the `purpose` response property for the response status `200`
  - added the new optional request property `expires_after`
  - added the new `evals` enum value to the request property `purpose`
  - added the new `user_data` enum value to the request property `purpose`
  - added the non-success response with the status `400`
  - added the non-success response with the status `429`
  - added the non-success response with the status `500`
  - added the optional property `expires_at` to the response with the `200` status

---

[Operation](https://skmtc.dev/omnistack-sh/apis/openai-api/docs/files/post.md) - [API](https://skmtc.dev/omnistack-sh/apis/openai-api.md) - [Page](https://skmtc.dev/omnistack-sh/apis/openai-api/changes/files/post)