---
title: "Changes to Add Caption"
method: POST
path: "/library/{libraryId}/videos/{videoId}/captions/{srclang}"
---

# Changes to Add Caption

`POST /library/{libraryId}/videos/{videoId}/captions/{srclang}`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 2 revisions.

- **2026-11-12** `83116184952f`: 2 breaking, 6 warning, 7 info

## Changes

- **2026-11-12** `83116184952f`: 2 breaking, 6 warning, 7 info
  - the response's body type changed from `object` to no type for status `200`
  - the response's body type changed from `object` to no type for status `400`
  - removed the optional property `errorList` from the response with the `400` status
  - removed the optional property `message` from the response with the `200` status
  - removed the optional property `statusCode` from the response with the `200` status
  - removed the optional property `success` from the response with the `200` status
  - removed the optional property `valid` from the response with the `400` status
  - removed the optional property `warningList` from the response with the `400` status
  - request property `srclang` deprecated
  - added `#/components/schemas/StatusModel, subschema #2` to the response body `allOf` list for the response status `200`
  - added `#/components/schemas/StatusModel, subschema #2` to the response body `allOf` list for the response status `400`
  - added the media type `application/json` for the response with the status `401`
  - added the media type `application/json` for the response with the status `403`
  - added the media type `application/json` for the response with the status `404`
  - added the media type `application/json` for the response with the status `500`

---

[Operation](https://skmtc.dev/bunny/apis/stream-api/docs/library/:libraryId/videos/:videoId/captions/:srclang/post.md) - [API](https://skmtc.dev/bunny/apis/stream-api.md) - [Page](https://skmtc.dev/bunny/apis/stream-api/changes/library/:libraryId/videos/:videoId/captions/:srclang/post)