v6.4.0-beta.1

Features

• MDX: Support CSF3 play/render functions (#16159)
• Addon-a11y: Export parameter types (#16128)

Bug Fixes

• Addon-docs: Fix loading behavior for Canvas doc block (#16161)
• Added index.d.ts for addon-docs/angular (#16123)

Maintenance

• Angular: Remove dead code in client (#16137)