### Added

- `field::Empty` type for declaring empty fields whose values will be
  recorded later (#548)
- `field::Value` implementations for `Wrapping` and `NonZero*` numbers
  (#538)

### Fixed

- Broken and unresolvable links in RustDoc (#595)

Thanks to @oli-cosmian for contributing to this release!

Signed-off-by: Eliza Weisman <eliza@buoyant.io>