Add April 9 changelog entry

[mintlify]

Summary

Adds a new changelog entry for April 9, 2026 based on recent commits in mintlify/mint.

Key features documented:

• Multi-skill support - .mintlify/skills/ directory for multiple skill files
• Directory listings - Automatic accordion/card directory UI for navigation group root pages
• MCP client credentials - OAuth client_credentials grant type for machine-to-machine auth
• mint analytics CLI - Terminal-based documentation analytics with multiple output formats

Also includes:

• Workflow inbox notifications
• Editor improvements (live presence, page creation, discard changes, source editor, new slash menu)
• Custom protocol schemes for MCP redirects
• CLI token auto-refresh
• Finnish language support
• OpenAPI pages in exports
• HR element support in MDX
• Bug fixes for badge rendering, inline formatting, subdomain 404s, and more

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Note

Low Risk
Low risk: this PR only adds documentation content to changelog.mdx with no code or configuration changes.

Overview
Adds a new April 9, 2026 <Update> entry to changelog.mdx (RSS-enabled) documenting recent releases, including multi-skill support via .mintlify/skills/, navigation group directory listings ("directory": "accordion"|"card"), MCP OAuth client_credentials, and the new mint analytics CLI command.

Also lists a set of editor/workflow/CLI/localization/export/MDX improvements and several UI and reliability bug fixes.

^{Reviewed by Cursor Bugbot for commit 9629efd. Bugbot is set up for automated code reviews on this repo. Configure here.}

[mintlify-development]

Preview deployment for your docs. Learn more about Mintlify Previews.

Project	Status	Preview	Updated (UTC)
userauth	🟡 Building	–	Apr 9, 2026, 6:36 PM

[mintlify]

Preview deployment for your docs. Learn more about Mintlify Previews.

Project	Status	Preview	Updated (UTC)
mintlify	🟢 Ready	View Preview	Apr 9, 2026, 6:39 PM