Breaking
- XO now enforces that your project is ESM
If you cannot yet move to ESM, I recommend staying on XO 0.39 for now. - Require Node.js 12.20 cc06c3c
New rules
unicorn/prefer-node-protocol
unicorn/prefer-module
unicorn/no-document-cookie
unicorn/numeric-separators-style
unicorn/prefer-array-flat
unicorn/prefer-array-flat-map