21.4.0

Added

• Add no-large-snapshots rule
  (#24)
• Add prefer-to-be-null rule
  (#10)
• Add prefer-to-be-undefined rule
  (#9)

21.3.2

Changed

• Fix prefer-to-have-length when there are no argument properties
  (#6)

21.3.1

Changed

• Remove trailing commas from source code

21.3.0

Added

• Add prefer-to-have-length rule
  (#4771)