---
title: "Changes to Launch workflow"
method: POST
path: "/workflow/launch"
---

# Changes to Launch workflow

`POST /workflow/launch`

> Every recorded change to this operation, newest first.
> 19 revisions in range; 1 not diffed.

## Timeline

Changed in 8 of 19 revisions.

- **2026-10-20** `adab9fd613a4`: 2 info
- **2026-09-25** `23c276ac7e55`: 1 info
- **2026-09-21** `ca2c61bb3604`: 1 info
- **2026-07-24** `13316c9fe5ff`: 1 info
- **2026-07-09** `aa8544683897`: 3 breaking, 1 info
- **2026-06-26** `bbf1cd758a38`: 1 info
- **2026-03-10** `49c99a6944de`: 1 info
- **2026-01-20** `98d6b538c88e`: 1 info

## Changes

- **2026-10-20** `adab9fd613a4`: 2 info
  - added the new optional request property `launch/fusionSnapshots`
  - added the new optional request property `launch/overrideNextflowFusionVersion`
- **2026-09-25** `23c276ac7e55`: 1 info
  - added the optional property `warnings` to the response with the `200` status
- **2026-09-21** `ca2c61bb3604`: 1 info
  - added the new optional request property `launch/fusionVersion`
- **2026-07-24** `13316c9fe5ff`: 1 info
  - added the new optional request property `launch/nextflowVersion`
- **2026-07-09** `aa8544683897`: 3 breaking, 1 info
  - added `#/components/schemas/ErrorResponse, #/components/schemas/WorkflowLaunchValidationErrorResponse` to the response body `oneOf` list for the response status `400`
  - the response's body type changed from `object` to no type for status `400`
  - removed the required property `message` from the response with the `400` status
  - added the new optional request property `launch/outputDir`
- **2026-06-26** `bbf1cd758a38`: 1 info
  - added the new optional request property `launch/syntaxParser`
- **2026-03-10** `49c99a6944de`: 1 info
  - added the new optional request property `launch/pipelineSchemaId`
- **2026-01-20** `98d6b538c88e`: 1 info
  - added the new optional request property `launch/commitId`

---

[Operation](https://skmtc.dev/seqeralabs/apis/seqera-api/docs/workflow/launch/post.md) - [API](https://skmtc.dev/seqeralabs/apis/seqera-api.md) - [Page](https://skmtc.dev/seqeralabs/apis/seqera-api/changes/workflow/launch/post)