---
title: "Changes to Create Attachment"
method: POST
path: "/attachments"
---

# Changes to Create Attachment

`POST /attachments`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 5 of 43 revisions.

- **2026-07-13** `228cc05ba97d`: 1 info
- **2026-06-07** `13f3bc084194`: 1 breaking, 1 warning, 6 info
- **2026-01-17** `8590daeecaea`: 1 breaking, 2 info
- **2025-10-15** `b366d059d1ae`: 1 breaking, 1 info
- **2025-07-11** `b3fb230c0938`: 1 info

## Changes

- **2026-07-13** `228cc05ba97d`: 1 info
  - added the non-success response with the status `429`
- **2026-06-07** `13f3bc084194`: 1 breaking, 1 warning, 6 info
  - the `code` response's property type changed from no type to `string` for status `403`
  - deleted the `query` request parameter `name`
  - the endpoint scheme security `ApiKeyAuth` was added to the API
  - the endpoint scheme security `PermissionAuthenticationRequirement` was removed from the API
  - api tag `Attachments` added
  - added the new optional request property `name`
  - added the non-success response with the status `401`
  - added the non-success response with the status `422`
- **2026-01-17** `8590daeecaea`: 1 breaking, 2 info
  - the `id` response's property type changed from no type to `string` for status `201`
  - removed `subschema #1, subschema #2` from the `id` response property `anyOf` list for the response status `201`
  - added the required property `size` to the response with the `201` status
- **2025-10-15** `b366d059d1ae`: 1 breaking, 1 info
  - the `id` response's property type changed from `string` to no type, and format from `uuid` to no format for status `201`
  - added `subschema #1, subschema #2` to the `id` response property `anyOf` list for the response status `201`
- **2025-07-11** `b3fb230c0938`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/buttondown/apis/buttondown-api/docs/attachments/post.md) - [API](https://skmtc.dev/buttondown/apis/buttondown-api.md) - [Page](https://skmtc.dev/buttondown/apis/buttondown-api/changes/attachments/post)