SDK 1.3.0 - 2023-03-21

Fixes

• Fix swapping exporter
  tables

[API 1.0.2] - 2022-02-22

• Docs for Erlang and Elixir macros added

[SDK 1.0.2] - 2022-02-22

Added

• Simpler configuration of span processors

Fixed

• Span Status: Ignore status changes that don't follow the define precedence in
  the spec

[Zipkin Exporter 1.0.0] - 2022-2-22

Fixed

• Attribute values that are lists are converted to strings in Zipkin tags
• Status converted to Zipkin tags

[API]

Fixed

• W3C Tracestate: Keep last value for duplicate key
• add report_cb to format log messages in composite propagator to have more
  detailed logs
• Fix use of wrong timestamp format on events

[SDK]

Fixed

• Fix use of wrong timestamp format on events

[Exporter]

Fixed

• use the default port of the scheme (http/https) instead of default OTLP
  port

• exporter: add compression and protocol options
• fix exporting spans with links
• exporter boot improvement: SDK will now continue to attempt to initialize the exporter if it fails
• events: accept map for attributes on an event

Features:

• support for Schema URLs on the Resource and Tracer (Instrumentation Library)
• add force_flush to tracer provider and span processors
• add gzip compression option for exporter
• configuration improvements and Span limit settings
• add ssl options support to httpc exporter
• make trace/span id generation customizable
• add simple span processor
• add support for OTEL_SERVICE_NAME environment variable

Fixes/improvements:

• Remaining validations
• move zipkin exporter to main repo
• Support limits on attributes, links and events
• move the rest of application env vars to configuration map
• tracers: store startup created tracers the same way as user created
• exporter: update trace protos to v0.11.0
• fix docs local_parent_not_sampled
• fix: Removes macro that references missing function
• batch_processor: go to idle state after export timeout
• skip exporting if batch table is empty
• use get_application_tracer in Elixir macros
• exporter: support hosts and paths as binary or list strings
• remove sampler option to start_span and with_span
• make TracerProvider simply implement a gen_server
• allowing the stacktrace to be logged
• improve exporter module documentation and readme
• w3c interop tests now run in CI
• fix otel_propagator_trace_context:extract/1 missing undefined check

• separate application tracer registration from user named tracers
• improve exporter failure logs and include stacktrace
• allows for optional end span timestamp
• Add B3 single propagation format support
• remove unneeded current span functions from otel_tracer
• Drop website_docs and docs_update workflow
• Generate docs with ExDoc
• Update propagators with composite
• Add b3multi option to OTEL_PROPAGATORS
• Expose trace IDs in hex format
• Fix root span sampling
• Do not insert non-recording spans in ETS
• Refactor otel_sampler to use callbacks for setup, should_sample, and decription
• Add test for child span sampling issue
• User defined ssl options in grpc endpoints
• use new api function from_remote_span for propagated span context
• Introduce otel_sampler:new/3 and fix behavior typespec
• Better compliance with status spec
• Add guard to register_tracer
• Be more specific on grpcbox dependency
• Remove unused header in otel_span_ets
• Upgrade Elixir and OTP in GitHub Workflow
• add github action for sending updated docs to otel.io repo
• Remove the OTLP receiver legacy gRPC port(55680) references
• opentelemetry.io: instrumentation docs
  page

• url encode baggage keys and values
• add opentelemetry.io docs
• permit keyword list start_opts in Tracer macros.
• fix bug preventing configuring span processors
• fix tracer configuration merging
• split metrics out to experimental applications
• add service.name fallback and process resource attributes
• OTLP Exporter features and fixes:
  • upgrade grpcbox and log errors returned during export
  • add load of exporter app in configuration and comment on why
  • support path on traces endpoints
  • support OS environment variables for setting tracer to OTLP
  • exporter: support for endpoint and header configuration -- used for sending permission tokens to services like Honeycomb and Lightstep
  • endpoint parsing exporter fixes and small cleanup in tracer