# PUT /1/boards/{}/labelNames is deprecated

Trello API deprecated PUT /1/boards/{id}/labelNames* without giving a shutdown date yet.

Trello has deprecated PUT /1/boards/{id}/labelNames* without providing a specific shutdown date. Trello API noted that this endpoint will be deprecated in 6 months per developer guidelines. After removal, affected calls to this endpoint fail.

## What to use instead

Create labels using POST /1/boards/{idBoard}/labels or POST /1/labels, and rename existing labels using PUT /1/labels/{id}.

- API: Trello API (api.trello.com)
- Kind: Endpoint removal
- Announced: February 17, 2025
- Takes effect: no date given yet
- Calls after that day: fail
- Calls it hits: `PUT /1/boards/{id}/labelNames*`
- Source: [Announcement](https://developer.atlassian.com/cloud/trello/changelog/)
- Verified: November 6, 2026, against Trello API's own pages
- Page: https://www.okapi.bot/providers/trello/breaking-changes/put-1-boards-labelnames-is-deprecated/

## Trello API's words

> This endpoint will be deprecated in 6 months per our developer communications guidelines (August 18, 2025).

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent