### Changed

- **parking_lot**: Updated the optional `parking_lot` dependency to
  accept the latest `parking_lot` version (#774)

### Fixed

- **fmt**: Fixed events with explicitly overridden parent spans being
  formatted  as though they were children of the current span (#767)

### Added

- **fmt**: Added the option to print synthesized events when spans are
  created, entered, exited, and closed, including span durations (#761)
- Documentation clarification and improvement (#762, #769)

Thanks to @rkuhn, @greenwoodcm, and @Ralith for contributing to this
release!

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