Claude Platform release notes — October 20, 2026, Claude Platform changelog, 20 Oct 2026

The Claude Tag API is available in beta for Claude Enterprise organizations with the experimental-claude-tag-2026-10-21 beta header. Its /v1/organizations/claude_tag/ endpoints read and change Claude Tag settings on Slack channels and Slack workspaces, show which settings apply in a channel and where each comes from, and attach Access bundles. Call it with an Admin API key that your primary owner creates in claude.ai with the read:claude_tag or write:claude_tag scope. It is not available to Claude Platform (Claude Console) organizations.