# POST /api/assistant.threads.setTitle is deprecated

Slack deprecated POST /api/assistant.threads.setTitle without giving a shutdown date yet.

## What to use instead

Call agents.sessions.rename instead, moving the app from assistant_view to agent_view (Slack's migration guide).

The replacement comes with moving the app from the Assistant to the Agent messaging experience, a change of what its users see.

- API: Slack (slack.com)
- Kind: Endpoint removal
- Announced: August 20, 2026
- Takes effect: no date given yet
- Calls after that day: fail
- Calls it hits: `POST /api/assistant.threads.setTitle`
- Source: [Announcement](https://docs.slack.dev/changelog/2026/08/20/agent-updates)
- Verified: November 6, 2026, against Slack's own pages
- Page: https://www.okapi.bot/providers/slack/breaking-changes/post-api-assistant-threads-settitle-is-deprecated/

## Slack's words

> The agents.sessions.setStatus and agents.sessions.rename API methods replace the assistant.threads.setStatus and assistant.threads.setTitle API methods, respectively. For now, your existing calls keep working through a compatibility bridge.

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