# Changelog
All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).

## [Unreleased]

## [0.3.1] - 2020-05-05
- Fix use of async `reqwest` in sync code.

## [0.3.0] - 2020-04-29
### Changed
- Update dependencies to latest available versions.

## [0.2.0] - 2019-09-13
### Changed
- **BREAKING**: Disable kafka transport by default.
- Update kafka client for openssl 1.0 support.

## [0.1.6] - 2019-05-27
### Fixed
- FollowsFrom spans actually follow the parent and are not partially children.

## [0.1.5] - 2019-05-26
### Changed
- Improve duration calculations to work at microsecond precision.

## [0.1.4] - 2019-05-23
### Added
- Ensure at least an annotation is attached to each span.

## [0.1.3] - 2019-05-18
### Added
- Thrift over HTTP collector (`/api/v1/spans` format).

### Changed
- Kafka collector is a feature (enabled for backward compatibility).

### Deprecated
- Default features will no longer include `kafka_transport` from v0.2.0

## [0.1.2] - 2018-03-04
### Fixed
- Extract returns `Ok(None)` if the trace ID header is missing.

## 0.1.1 - 2018-03-03
### Fixed
- Fix readme example.
- Fix repo link.

## 0.1.0 - 2018-02-23
### Added
- Basic documentation.
- Encode logs as JSON objects.
- Implement HTTP headers injection/extraction.
- Implement thrift-based binary injection/extraction.
- Initial library structure.
- Kafka Collector implementation.
- TraceID implementation.
- Zipkin SpanContext implementation.


[Unreleased]: https://github.com/stefano-pogliani/opentracingrust-zipkin/compare/v0.3.1...HEAD
[0.3.1]: https://github.com/stefano-pogliani/opentracingrust-zipkin/compare/v0.3.0...v0.3.1
[0.3.0]: https://github.com/stefano-pogliani/opentracingrust-zipkin/compare/v0.2.0...v0.3.0
[0.2.0]: https://github.com/stefano-pogliani/opentracingrust-zipkin/compare/v0.1.6...v0.2.0
[0.1.6]: https://github.com/stefano-pogliani/opentracingrust-zipkin/compare/v0.1.5...v0.1.6
[0.1.5]: https://github.com/stefano-pogliani/opentracingrust-zipkin/compare/v0.1.4...v0.1.5
[0.1.4]: https://github.com/stefano-pogliani/opentracingrust-zipkin/compare/v0.1.3...v0.1.4
[0.1.3]: https://github.com/stefano-pogliani/opentracingrust-zipkin/compare/v0.1.2...v0.1.3
[0.1.2]: https://github.com/stefano-pogliani/opentracingrust-zipkin/compare/v0.1.1...v0.1.2