2.0.0

• package is exposed as ES module
• drops support for node <12

1.8.0

• removes dependency @babel/polyfill

1.7.0

• add multiply method

1.6.0

• add debug to facilitate debugging in dependent projects

1.5.0

• compile with Babel 7

1.4.0

• Expose duration's parameters.
• Add .add(duration) method to merge 2 durations.

1.3.1

• Simplified ISO string output (now uses tagged template literals)

1.3.0

• Fix zero length ISO string output

1.2.0

• Support zero-length (empty) durations

1.1.0

• Include polyfills in build