---
title: "Changes to Updates the specified project milestone."
method: PUT
path: "/projectmilestones/{projectMilestoneId}"
---

# Changes to Updates the specified project milestone.

`PUT /projectmilestones/{projectMilestoneId}`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 3 of 15 revisions.

- **2026-09-17** `1556e0487867`: 1 warning, 1 info
- **2026-09-12** `8e46cf415581`: 1 info
- **2026-08-21** `a13e7c704262`: 1 warning, 1 info

## Changes

- **2026-09-17** `1556e0487867`: 1 warning, 1 info
  - deleted the `header` request parameter `Authorization`
  - the endpoint scheme security `oauth2` was added to the API
- **2026-09-12** `8e46cf415581`: 1 info
  - api operation id `PutProjectMilestoneById` removed and replaced with `projectMilestones_PutProjectMilestoneById`
- **2026-08-21** `a13e7c704262`: 1 warning, 1 info
  - the `name` request property's maxLength was set to `255`
  - response property `project/plannedDuration` deprecated

---

[Operation](https://skmtc.dev/awork-io/apis/api-v1-reference/docs/projectmilestones/:projectMilestoneId/put.md) · [API](https://skmtc.dev/awork-io/apis/api-v1-reference.md) · [Page](https://skmtc.dev/awork-io/apis/api-v1-reference/changes/projectmilestones/:projectMilestoneId/put)