• Allow the tag of a field or enum variant to be deserialized from any unsigned integer type (#963, thanks @sfackler)
• Support serialize_with and deserialize_with applied to entire enum variants (#1015, thanks @spinda)
• Add an optional skip_field method so serializers can be notified when a field is skipped (#1022, thanks @sfackler)
• Add a "SCREAMING-KEBAB-CASE" option for the rename_all attribute (#1043, thanks @greyblake)