---
title: "Changes to Start an exec instance"
method: POST
path: "/exec/{id}/start"
---

# Changes to Start an exec instance

`POST /exec/{id}/start`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 79 revisions.

- **2026-02-24** `6df97b60796c`: 2 breaking, 4 info
- **2026-02-14** `31f80d10d31a`: 3 breaking, 4 info
- **2026-02-09** `831637d06c77`: 5 info

## Changes

- **2026-02-24** `6df97b60796c`: 2 breaking, 4 info
  - removed the request body
  - removed the success response with the status `204`
  - api tag `Exec` added
  - added the non-success response with the status `404`
  - added the non-success response with the status `409`
  - added the success response with the status `200`
- **2026-02-14** `31f80d10d31a`: 3 breaking, 4 info
  - request body became required
  - the `ConsoleSize/items/` request property format changed from no format to `int32`
  - removed the success response with the status `200`
  - api tag `Exec` removed
  - removed the non-success response with the status `404`
  - removed the non-success response with the status `409`
  - added the success response with the status `204`
- **2026-02-09** `831637d06c77`: 5 info
  - added optional request body
  - added the media type `application/vnd.docker.multiplexed-stream` for the response with the status `404`
  - added the media type `application/vnd.docker.multiplexed-stream` for the response with the status `409`
  - added the media type `application/vnd.docker.raw-stream` for the response with the status `404`
  - added the media type `application/vnd.docker.raw-stream` for the response with the status `409`

---

[Operation](https://skmtc.dev/hexlet/apis/docker-engine-api/docs/exec/:id/start/post.md) - [API](https://skmtc.dev/hexlet/apis/docker-engine-api.md) - [Page](https://skmtc.dev/hexlet/apis/docker-engine-api/changes/exec/:id/start/post)