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@Aneurysm9 Aneurysm9 released this 18 Jun 15:35
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v1.0.0-RC1
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Aneurysm9 Anthony Mirabella
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Learn about vigilant mode.
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Learn about vigilant mode.

1.0.0-RC1 / 0.21.0 - 2021-06-18

With this release we are introducing a split in module versions. The tracing API and SDK are entering the v1.0.0 Release Candidate phase with v1.0.0-RC1 while the experimental metrics API and SDK continue with v0.x releases at v0.21.0. Modules at major version 1 or greater will not depend on modules with major version 0.

Added

  • Adds otlpgrpc.WithRetryoption for configuring the retry policy for transient errors on the otlp/gRPC exporter. (#1832)
    • The following status codes are defined as transient errors:
      gRPC Status Code Description
      1 Cancelled
      4 Deadline Exceeded
      8 Resource Exhausted
      10 Aborted
      10 Out of Range
      14 Unavailable
      15 Data Loss
  • Added Status type to the go.opentelemetry.io/otel/sdk/trace package to represent the status of a span. (#1874)
  • Added SpanStub type and its associated functions to the go.opentelemetry.io/otel/sdk/trace/tracetest package.
    This type can be used as a testing replacement for the SpanSnapshot that was removed from the go.opentelemetry.io/otel/sdk/trace package. (#1873)
  • Adds support for scheme in OTEL_EXPORTER_OTLP_ENDPOINT according to the spec. (#1886)
  • Adds trace.WithSchemaURL option for configuring the tracer with a Schema URL. (#1889)
  • Added an example of using OpenTelemetry Go as a trace context forwarder. (#1912)
  • ParseTraceState is added to the go.opentelemetry.io/otel/trace package.
    It can be used to decode a TraceState from a tracestate header string value. (#1937)
  • Added Len method to the TraceState type in the go.opentelemetry.io/otel/trace package.
    This method returns the number of list-members the TraceState holds. (#1937)
  • Creates package go.opentelemetry.io/otel/exporters/otlp/otlptrace that defines a trace exporter that uses a otlptrace.Client to send data.
    Creates package go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc implementing a gRPC otlptrace.Client and offers convenience functions, NewExportPipeline and InstallNewPipeline, to setup and install a otlptrace.Exporter in tracing .(#1922)
  • Added Baggage, Member, and Property types to the go.opentelemetry.io/otel/baggage package along with their related functions. (#1967)
  • Added ContextWithBaggage, ContextWithoutBaggage, and FromContext functions to the go.opentelemetry.io/otel/baggage package.
    These functions replace the Set, Value, ContextWithValue, ContextWithoutValue, and ContextWithEmpty functions from that package and directly work with the new Baggage type. (#1967)
  • The OTEL_SERVICE_NAME environment variable is the preferred source for service.name, used by the environment resource detector if a service name is present both there and in OTEL_RESOURCE_ATTRIBUTES. (#1969)
  • Creates package go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp implementing an HTTP otlptrace.Client and offers convenience functions, NewExportPipeline and InstallNewPipeline, to setup and install a otlptrace.Exporter in tracing. (#1963)
  • Changes go.opentelemetry.io/otel/sdk/resource.NewWithAttributes to require a schema URL. The old function is still available as resource.NewSchemaless. This is a breaking change. (#1938)
  • Several builtin resource detectors now correctly populate the schema URL. (#1938)
  • Creates package go.opentelemetry.io/otel/exporters/otlp/otlpmetric that defines a metrics exporter that uses a otlpmetric.Client to send data.
  • Creates package go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc implementing a gRPC otlpmetric.Client and offers convenience functions, New and NewUnstarted, to create an otlpmetric.Exporter.(#1991)
  • Added go.opentelemetry.io/otel/exporters/stdout/stdouttrace exporter. (#2005)
  • Added go.opentelemetry.io/otel/exporters/stdout/stdoutmetric exporter. (#2005)
  • Added a TracerProvider() method to the "go.opentelemetry.io/otel/trace".Span interface. This can be used to obtain a TracerProvider from a given span that utilizes the same trace processing pipeline. (#2009)

Changed

  • Make NewSplitDriver from go.opentelemetry.io/otel/exporters/otlp take variadic arguments instead of a SplitConfig item.
    NewSplitDriver now automatically implements an internal noopDriver for SplitConfig fields that are not initialized. (#1798)
  • resource.New() now creates a Resource without builtin detectors. Previous behavior is now achieved by using WithBuiltinDetectors Option. (#1810)
  • Move the Event type from the go.opentelemetry.io/otel package to the go.opentelemetry.io/otel/sdk/trace package. (#1846)
  • CI builds validate against last two versions of Go, dropping 1.14 and adding 1.16. (#1865)
  • BatchSpanProcessor now report export failures when calling ForceFlush() method. (#1860)
  • Set.Encoded(Encoder) no longer caches the result of an encoding. (#1855)
  • Renamed CloudZoneKey to CloudAvailabilityZoneKey in Resource semantic conventions according to spec. (#1871)
  • The StatusCode and StatusMessage methods of the ReadOnlySpan interface and the Span produced by the go.opentelemetry.io/otel/sdk/trace package have been replaced with a single Status method.
    This method returns the status of a span using the new Status type. (#1874)
  • Updated ExportSpans method of theSpanExporter interface type to accept ReadOnlySpans instead of the removed SpanSnapshot.
    This brings the export interface into compliance with the specification in that it now accepts an explicitly immutable type instead of just an implied one. (#1873)
  • Unembed SpanContext in Link. (#1877)
  • Generate Semantic conventions from the specification YAML. (#1891)
  • Spans created by the global Tracer obtained from go.opentelemetry.io/otel, prior to a functioning TracerProvider being set, now propagate the span context from their parent if one exists. (#1901)
  • The "go.opentelemetry.io/otel".Tracer function now accepts tracer options. (#1902)
  • Move the go.opentelemetry.io/otel/unit package to go.opentelemetry.io/otel/metric/unit. (#1903)
  • Changed go.opentelemetry.io/otel/trace.TracerConfig to conform to the Contributing guidelines (#1921)
  • Changed go.opentelemetry.io/otel/trace.SpanConfig to conform to the Contributing guidelines. (#1921)
  • Changed span.End() now only accepts Options that are allowed at End(). (#1921)
  • Changed go.opentelemetry.io/otel/metric.InstrumentConfig to conform to the Contributing guidelines. (#1921)
  • Changed go.opentelemetry.io/otel/metric.MeterConfig to conform to the Contributing guidelines. (#1921)
  • Refactored option types according to the contribution style guide. (#1882)
  • Move the go.opentelemetry.io/otel/trace.TraceStateFromKeyValues function to the go.opentelemetry.io/otel/oteltest package.
    This function is preserved for testing purposes where it may be useful to create a TraceState from attribute.KeyValues, but it is not intended for production use.
    The new ParseTraceState function should be used to create a TraceState. (#1931)
  • Updated MarshalJSON method of the go.opentelemetry.io/otel/trace.TraceState type to marshal the type into the string representation of the TraceState. (#1931)
  • The TraceState.Delete method from the go.opentelemetry.io/otel/trace package no longer returns an error in addition to a TraceState. (#1931)
  • Updated Get method of the TraceState type from the go.opentelemetry.io/otel/trace package to accept a string instead of an attribute.Key type. (#1931)
  • Updated Insert method of the TraceState type from the go.opentelemetry.io/otel/trace package to accept a pair of strings instead of an attribute.KeyValue type. (#1931)
  • Updated Delete method of the TraceState type from the go.opentelemetry.io/otel/trace package to accept a string instead of an attribute.Key type. (#1931)
  • Renamed NewExporter to New in the go.opentelemetry.io/otel/exporters/stdout package. (#1985)
  • Renamed NewExporter to New in the go.opentelemetry.io/otel/exporters/metric/prometheus package. (#1985)
  • Renamed NewExporter to New in the go.opentelemetry.io/otel/exporters/trace/jaeger package. (#1985)
  • Renamed NewExporter to New in the go.opentelemetry.io/otel/exporters/trace/zipkin package. (#1985)
  • Renamed NewExporter to New in the go.opentelemetry.io/otel/exporters/otlp package. (#1985)
  • Renamed NewUnstartedExporter to NewUnstarted in the go.opentelemetry.io/otel/exporters/otlp package. (#1985)
  • The go.opentelemetry.io/otel/semconv package has been moved to go.opentelemetry.io/otel/semconv/v1.4.0 to allow for multiple telemetry schema versions to be used concurrently. (#1987)
  • Metrics test helpers in go.opentelemetry.io/otel/oteltest have been moved to go.opentelemetry.io/otel/metric/metrictest. (#1988)

Deprecated

  • The go.opentelemetry.io/otel/exporters/metric/prometheus is deprecated, use go.opentelemetry.io/otel/exporters/prometheus instead. (#1993)
  • The go.opentelemetry.io/otel/exporters/trace/jaeger is deprecated, use go.opentelemetry.io/otel/exporters/jaeger instead. (#1993)
  • The go.opentelemetry.io/otel/exporters/trace/zipkin is deprecated, use go.opentelemetry.io/otel/exporters/zipkin instead. (#1993)

Removed

  • Removed resource.WithoutBuiltin(). Use resource.New(). (#1810)
  • Unexported types resource.FromEnv, resource.Host, and resource.TelemetrySDK, Use the corresponding With*() to use individually. (#1810)
  • Removed the Tracer and IsRecording method from the ReadOnlySpan in the go.opentelemetry.io/otel/sdk/trace.
    The Tracer method is not a required to be included in this interface and given the mutable nature of the tracer that is associated with a span, this method is not appropriate.
    The IsRecording method returns if the span is recording or not.
    A read-only span value does not need to know if updates to it will be recorded or not.
    By definition, it cannot be updated so there is no point in communicating if an update is recorded. (#1873)
  • Removed the SpanSnapshot type from the go.opentelemetry.io/otel/sdk/trace package.
    The use of this type has been replaced with the use of the explicitly immutable ReadOnlySpan type.
    When a concrete representation of a read-only span is needed for testing, the newly added SpanStub in the go.opentelemetry.io/otel/sdk/trace/tracetest package should be used. (#1873)
  • Removed the Tracer method from the Span interface in the go.opentelemetry.io/otel/trace package.
    Using the same tracer that created a span introduces the error where an instrumentation library's Tracer is used by other code instead of their own.
    The "go.opentelemetry.io/otel".Tracer function or a TracerProvider should be used to acquire a library specific Tracer instead. (#1900)
    • The TracerProvider() method on the Span interface may also be used to obtain a TracerProvider using the same trace processing pipeline. (#2009)
  • The http.url attribute generated by HTTPClientAttributesFromHTTPRequest will no longer include username or password information. (#1919)
  • Removed IsEmpty method of the TraceState type in the go.opentelemetry.io/otel/trace package in favor of using the added TraceState.Len method. (#1931)
  • Removed Set, Value, ContextWithValue, ContextWithoutValue, and ContextWithEmpty functions in the go.opentelemetry.io/otel/baggage package.
    Handling of baggage is now done using the added Baggage type and related context functions (ContextWithBaggage, ContextWithoutBaggage, and FromContext) in that package. (#1967)
  • The InstallNewPipeline and NewExportPipeline creation functions in all the exporters (prometheus, otlp, stdout, jaeger, and zipkin) have been removed.
    These functions were deemed premature attempts to provide convenience that did not achieve this aim. (#1985)
  • The go.opentelemetry.io/otel/exporters/otlp exporter has been removed. Use go.opentelemetry.io/otel/exporters/otlp/otlptrace instead. (#1990)
  • The go.opentelemetry.io/otel/exporters/stdout exporter has been removed. Use go.opentelemetry.io/otel/exporters/stdout/stdouttrace or go.opentelemetry.io/otel/exporters/stdout/stdoutmetric instead. (#2005)

Fixed

  • Only report errors from the "go.opentelemetry.io/otel/sdk/resource".Environment function when they are not nil. (#1850, #1851)
  • The Shutdown method of the simple SpanProcessor in the go.opentelemetry.io/otel/sdk/trace package now honors the context deadline or cancellation. (#1616, #1856)
  • BatchSpanProcessor now drops span batches that failed to be exported. (#1860)
  • Use http://localhost:14268/api/traces as default Jaeger collector endpoint instead of http://localhost:14250. (#1898)
  • Allow trailing and leading whitespace in the parsing of a tracestate header. (#1931)
  • Add logic to determine if the channel is closed to fix Jaeger exporter test panic with close closed channel. (#1870, #1973)
  • Avoid transport security when OTLP endpoint is a Unix socket. (#2001)
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