---
title: "Changes to Create a spec"
method: POST
path: "/v0/specs"
---

# Changes to Create a spec

`POST /v0/specs`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 4 of 194 revisions.

- **2026-03-23** `1634d744359e`: 1 breaking, 3 info
- **2026-02-26** `e6055a86dc91`: 2 info
- **2026-02-18** `b071e7612205`: 1 breaking, 1 info
- **2026-02-14** `4b5786de4a4a`: 1 info

## Changes

- **2026-03-23** `1634d744359e`: 1 breaking, 3 info
  - added the new required request property `os`
  - added the new optional request property `sandbox`
  - added the optional property `sandbox` to the response with the `201` status
  - added the required property `os` to the response with the `201` status
- **2026-02-26** `e6055a86dc91`: 2 info
  - added the new optional request property `fallback`
  - added the optional property `fallback` to the response with the `201` status
- **2026-02-18** `b071e7612205`: 1 breaking, 1 info
  - removed the enum value `riscv64` of the request property `architecture/allOf[#/components/schemas/Architecture]/`
  - removed the `riscv64` enum value from the `architecture/allOf[#/components/schemas/Architecture]/` response property for the response status `201`
- **2026-02-14** `4b5786de4a4a`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/bencherdev/apis/bencher-api/docs/v0/specs/post.md) - [API](https://skmtc.dev/bencherdev/apis/bencher-api.md) - [Page](https://skmtc.dev/bencherdev/apis/bencher-api/changes/v0/specs/post)