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Release: Slack CLI v4.3.0

Version 4.3.0 of the Slack CLI is here!

  • The slack create command now accepts the --app flag to scaffold a project and automatically link it to an existing app.
  • The slack external-auth add-secret command is now available to all apps, not just Slack-hosted apps.
  • The Slack CLI now supports mcp_server manifest fields for connecting MCP servers to the Slackbot MCP Client.