v2.13.0

New types

• Exact (#259) 9394d54
• ReadonlyTuple (#383) f445cc6
• Replace (#389) 5c793ce

Improvements

• Rename Mutable to Writable (#398) 638d597
  • Mutable still works and is now just a deprecated alias.

Fixes

• Fix deep properties of PackageJson and TsConfigJson (#269) f2aae51

v2.12.2...v2.13.0