0.5.0 (June 2, 2020)

Added

Support tracing-log special values (#735)
Support Span::follows_from creating otel span links (#723)
Dynamic otel span names via otel.name field (#732)

Breaking Changes

Upgrade to v0.6.0 of opentelemetry (#745)

Fixed

Filter out invalid parent contexts when building span contexts (#743)

0.4.0 (May 12, 2020)

Added

tracing_opentelemetry::layer() method to construct a default layer.
OpenTelemetryLayer::with_sampler method to configure the opentelemetry sampling behavior.
OpenTelemetryLayer::new method to configure both the tracer and sampler.

Breaking Changes

OpenTelemetrySpanExt::set_parent now accepts a reference to an extracted parent Context instead of a SpanContext to match propagators.
OpenTelemetrySpanExt::context now returns a Context instead of a SpanContext to match propagators.
OpenTelemetryLayer::with_tracer now takes &self as a parameter
Upgrade to v0.5.0 of opentelemetry.

Fixed

Fixes bug where child spans were always marked as sampled

0.3.1 (April 19, 2020)

Added

Change span status code to unknown on error event

0.3.0 (April 5, 2020)

Added

Span extension for injecting and extracting opentelemetry span contexts into tracing spans

Removed

Disabled the metrics feature of the opentelemetry as it is unused.

0.2.0 (February 7, 2020)

Changed

Update tracing-subscriber to 0.2.0 stable
Update to opentelemetry 0.2.0