5.0.0

Change

• 59b4c48 Change to require Node.js 16
  migrate: update too
• edb3f1d Change to use exports
  migrate: don’t use private APIs
• e0793a4 Update @types/mdast, utilities, etc
  migrate: update too
• 0e2c003 Change to use alt on images
  migrate: use alt text with meaning

Full Changelog: 4.0.1...5.0.0