---
title: "Changes to Update image blob/layer upload"
method: PUT
path: "/v2/{name}/blobs/uploads/{session_id}"
---

# Changes to Update image blob/layer upload

`PUT /v2/{name}/blobs/uploads/{session_id}`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 37 revisions.

- **2026-10-05** `fba44d54755f`: 1 info
- **2026-04-20** `902fb3f28c66`: 2 info
- **2021-10-21** `81b68c5e4fde`: 2 warning, 2 info

## Changes

- **2026-10-05** `fba44d54755f`: 1 info
  - added the non-success response with the status `503`
- **2026-04-20** `902fb3f28c66`: 2 info
  - added the non-success response with the status `400`
  - added the non-success response with the status `416`
- **2021-10-21** `81b68c5e4fde`: 2 warning, 2 info
  - the optional response header `Docker-Content-Digest` removed for the status `201`
  - the optional response header `Location` removed for the status `201`
  - removed the non-success response with the status `400`
  - removed the non-success response with the status `416`

---

[Operation](https://skmtc.dev/project-zot/apis/open-container-initiative-distribution-specification/docs/v2/:name/blobs/uploads/:session_id/put.md) - [API](https://skmtc.dev/project-zot/apis/open-container-initiative-distribution-specification.md) - [Page](https://skmtc.dev/project-zot/apis/open-container-initiative-distribution-specification/changes/v2/:name/blobs/uploads/:session_id/put)