v0.4.0

Added

• New async batch span processor
• New stdout exporter
• Add trace_id to SpanBuilder

Changed

• Add attributes to Events.
• Update Span's add_event and add_event_with_timestamp to accept attributes.
• Record log fields in jaeger exporter
• Properly export span kind in jaeger exporter
• Add support for Links
• Add status_message to Span and SpanData
• Rename SpanStatus to StatusCode
• Update EvictedQueue internals from LIFO to FIFO
• Switch span attributes to EvictedHashMap

Fixed

• Call shutdown correctly when span processors and exporters are dropped

v0.3.0

Added

• New Base64 propagator
• New SpanBuilder api
• Zipkin Exporter crate

Changed

• Switch to SpanId and TraceId from u64 and u128
• Remove &mut self requirements for Span API

Fixed

• circular Tracer debug impl

v0.2.0

Added

• Make trace and metrics features optional
• ExportResult as specified in the specification
• Add Futures compatibility API
• Added serde serialise support to SpanData
• Separate OpenTelemetry Jaeger crate

Changed

• Rename HttpTraceContextPropagator to TraceContextPropagator
• Rename HttpB3Propagator to B3Propagator
• Switch to Apache 2 license
• Resolve agent addresses to allow non-static IP
• Remove tracer name prefix from span name

Removed

• Remove add_link from spans