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DSDS 0.22.0 coming in hot. Most of this update is about addition by subtraction. Removed unneeded properties and enum values plus some quality of life improvements like setting a source root. Check it out: designsystemdocspec.org

Removing enum values from a schema breaks anyone validating against the old one. A migration note listing each removed property beside its replacement keeps pre 1.0 churn cheap for adopters.

Pre 1.0 is the cheap window. After it, every removal needs a deprecation cycle, so a test file of old valid examples run against the new schema will catch leftovers.