All you need to know about hyphenation in CSS
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Richard Rutter:

There is more to setting hyphenation than just turning on the hyphens. The CSS Text Module Level 4 has introduced the same kind of hyphenation controls provided in layout software (eg. InDesign) and some word processors (including Word). These controls provide different ways to define how much hyphenation occurs through your text.

This is great news. I’ve always avoided CSS hyphenation because of how aggressive the algorithms are. Using these new properties in concert with @supports we can get well-controlled hyphenation as a progressive enhancement while avoiding the half-baked hyper-hyphenated middle ground we’ve had so far.