--- title: "Changes to Update a milestone" method: PATCH path: "/milestones/{id}" --- # Changes to Update a milestone `PATCH /milestones/{id}` > Every recorded change to this operation, newest first. ## Timeline Changed in 4 of 63 revisions. - **2026-10-12** `40bf3229d58f`: 1 info - **2026-10-11** `dfb481067e5a`: 1 breaking, 73 info - **2026-09-12** `e85c0a2a3253`: 3 info - **2026-08-28** `fe3adb90ea45`: 1 info ## Changes - **2026-10-12** `40bf3229d58f`: 1 info - the response property `data` became required for the status `200` - **2026-10-11** `dfb481067e5a`: 1 breaking, 73 info - the response property `data/account/external_ids` became nullable for the status `200` - added the non-success response with the status `401` - added the non-success response with the status `429` - added the non-success response with the status `500` - the response property `data/account/id` became required for the status `200` - the response property `data/created_at` became required for the status `200` - the response property `data/id` became required for the status `200` - the response property `data/name` became required for the status `200` - the response property `data/project/id` became required for the status `200` - the response property `data/updated_at` became required for the status `200` - the response property `request_id` became required for the status `200` - the response property `request_id` became required for the status `400` - the response property `request_id` became required for the status `403` - the response property `request_id` became required for the status `404` - removed the `duplicate_object` enum value from the `code` response property for the response status `400` - removed the `duplicate_object` enum value from the `code` response property for the response status `403` - removed the `duplicate_object` enum value from the `code` response property for the response status `404` - removed the `email_bounced` enum value from the `code` response property for the response status `400` - removed the `email_bounced` enum value from the `code` response property for the response status `403` - removed the `email_bounced` enum value from the `code` response property for the response status `404` - removed the `internal_error` enum value from the `code` response property for the response status `400` - removed the `internal_error` enum value from the `code` response property for the response status `403` - removed the `internal_error` enum value from the `code` response property for the response status `404` - removed the `internal_issue_reply_not_allowed` enum value from the `code` response property for the response status `400` - removed the `internal_issue_reply_not_allowed` enum value from the `code` response property for the response status `403` - removed the `internal_issue_reply_not_allowed` enum value from the `code` response property for the response status `404` - removed the `invalid_api_token` enum value from the `code` response property for the response status `400` - removed the `invalid_api_token` enum value from the `code` response property for the response status `403` - removed the `invalid_api_token` enum value from the `code` response property for the response status `404` - removed the `invalid_authorization_header` enum value from the `code` response property for the response status `400` - removed the `invalid_authorization_header` enum value from the `code` response property for the response status `403` - removed the `invalid_authorization_header` enum value from the `code` response property for the response status `404` - removed the `invalid_oauth_token` enum value from the `code` response property for the response status `400` - removed the `invalid_oauth_token` enum value from the `code` response property for the response status `403` - removed the `invalid_oauth_token` enum value from the `code` response property for the response status `404` - removed the `invalid_request_body` enum value from the `code` response property for the response status `400` - removed the `invalid_request_body` enum value from the `code` response property for the response status `403` - removed the `invalid_request_body` enum value from the `code` response property for the response status `404` - removed the `invalid_webhook_credentials` enum value from the `code` response property for the response status `400` - removed the `invalid_webhook_credentials` enum value from the `code` response property for the response status `403` - …34 more - **2026-09-12** `e85c0a2a3253`: 3 info - added the optional property `code` to the response with the `400` status - added the optional property `code` to the response with the `403` status - added the optional property `code` to the response with the `404` status - **2026-08-28** `fe3adb90ea45`: 1 info - added the non-success response with the status `403` --- [Operation](https://skmtc.dev/usepylon/apis/pylon-api/docs/milestones/:id/patch.md) - [API](https://skmtc.dev/usepylon/apis/pylon-api.md) - [Page](https://skmtc.dev/usepylon/apis/pylon-api/changes/milestones/:id/patch)