Added

- Support for `no-std` + `liballoc` (#263)

Changed

- Using the `#[instrument]` attribute on `async fn`s no longer requires a
  feature flag (#258)

Fixed

- The `#[instrument]` macro now works on generic functions (#262)

Changed

- Using the `#[instrument]` attribute on `async fn`s no longer requires a
  feature flag (#258)

Fixed

- The `#[instrument]` macro now works on generic functions (#262)

Added

- Support for `no-std` + `liballoc` (#256)

Fixed

- Broken links in RustDoc (#259)

0.1.4 (August 8, 2019)

Added

- `#[instrument]` attribute for automatically adding spans to functions (#253)

tracing-core 0.1.3 (August 8, 2019)

Added:

- `std::fmt::Display` implementation for `Level` (#194)
- `std::str::FromStr` implementation for `Level` (#195)

0.1.3 (July 11, 2019)

Added

- Log messages when a subscriber indicates that a span has closed, when the
  `log` feature flag is enabled (#180).

Changed

- `tracing-core` minimum dependency version to 0.1.2 (#174).

Fixed

- Fixed an issue where event macro invocations with a single field, using local
  variable shorthand, would recur infinitely (#166).
- Fixed uses of deprecated `tracing-core` APIs (#174).

Deprecated

- `Subscriber::drop_span` in favor of new `Subscriber::try_close` (#168)

Added

- `Into<Option<&Id>>`, `Into<Option<Id>>`, and
  `Into<Option<&'static Metadata<'static>>>` impls for `span::Current` (#170)
- `Subscriber::try_close` method (#153)
- Improved documentation for `dispatcher` (#171)

Added:

- `Subscriber::current_span` API to return the current span (#148).
- `span::Current` type, representing the `Subscriber`'s view of the current
  span (#148).

Fixed:

- Typos and broken links in documentation (#123, #124, #128, #154)

Changed

- `cfg_if` dependency to 0.1.9.

Fixed

- Compilation errors when the `log` feature is enabled (#131).
- Unclear wording and typos in documentation (#124, #128, #142).

- Initial release

Initial release