v3.0.3

• Use OnceExit instead of Once (#5).

v3.0.2

• Drop deprecated postcss.plugin function.

v3.0.1

• Add missing entry file (index.mjs) for ES Module when publish to NPM.

v3.0.0

• Support ES Module.
• Upgrade to PostCSS 8.

v2.0.0

• Upgrade to PostCSS 7.

v1.0.0

Release the first version.