### Added

- **attributes**: Support for arbitrary expressions as fields in
  `#[instrument]` (#672)
- **attributes**: `#[instrument]` now emits a compiler warning when
  ignoring unrecognized input (#672, #786)
- Improved documentation on using `tracing` in async code (#769)

### Changed

- Updated `tracing-core` dependency to 0.1.11

### Fixed

- **macros**: Excessive monomorphization in macros, which could lead to
  longer compilation times (#787)
- **log**: Compiler warnings in macros when `log` or `log-always` features
  are enabled (#753)
- Compiler error when `tracing-core/std` feature is enabled but
  `tracing/std` is not (#760)

Thanks to @nagisa, and everyone who contributed to the new `tracing-core`
and `tracing-attributes` versions, for contributing to this release!