Release v1.21.0/v0.46.0/v0.15.0/v0.1.0

[pellared]

Added

• Add the new go.opentelemetry.io/contrib/instrgen package to provide auto-generated source code instrumentation. (Add instrgen directory for source level instrumentation #3068, Add instrgen implementation #3108)
• Add "go.opentelemetry.io/contrib/samplers/jaegerremote".WithSamplingStrategyFetcher which sets custom fetcher implementation. (jaegerremote: Add WithSamplingStrategyFetcher option #4045)
• Add "go.opentelemetry.io/contrib/config" package that includes configuration models generated via go-jsonschema. ([config] introduce config package #4376)
• Add NewSDK function to "go.opentelemetry.io/contrib/config". The initial implementation only returns noop providers. ([config] add NewSDK func #4414)
• Add metrics support (No-op, OTLP and Prometheus) to go.opentelemetry.io/contrib/exporters/autoexport. (autoexport: Add support for metrics #4229, Add support for Prometheus exporter #4479)
• Add support for console span exporter and metrics exporter in go.opentelemetry.io/contrib/exporters/autoexport. (autoexport: Add support for console exporters #4486)
• Set unit and description on all instruments in go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp. (otelhttp: set unit on all instruments #4500)
• Add metric support for grpc.StatsHandler in go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc. (otelgrpc: Add metrics support to NewServerHandler and NewClientHandler #4356)
• Expose the name of the scopes in all instrumentation libraries as ScopeName. (Expose instrumentation scope name #4448)

Changed

• Dropped compatibility testing for [Go 1.19].
  The project no longer guarantees support for this version of Go. (Drop support for Go 1.19 #4352)
• Upgrade dependencies of OpenTelemetry Go to use the new v1.20.0/v0.43.0 release. (Release v1.21.0/v0.46.0/v0.15.0/v0.1.0 #4546)
• In go.opentelemetry.io/contrib/exporters/autoexport, Option was renamed to SpanOption. The old name is deprecated but continues to be supported as an alias. (autoexport: Add support for metrics #4229)

Deprecated

• The interceptors (UnaryClientInterceptor, StreamClientInterceptor, UnaryServerInterceptor, StreamServerInterceptor, WithInterceptorFilter) are deprecated. Use stats handlers (NewClientHandler, NewServerHandler) instead. (otelgrpc: Deprecate interceptors in favor of stats handlers #4534)

Fixed

• The go.opentelemetry.io/contrib/samplers/jaegerremote sampler does not panic when the default HTTP round-tripper (http.DefaultTransport) is not *http.Transport. (jaegerremote: Add WithSamplingStrategyFetcher option #4045)
• The UnaryServerInterceptor in go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc now sets gRPC status code correctly for the rpc.server.duration metric. (fix(otelgrpc): correctly assign grpc status code #4481)
• The NewClientHandler, NewServerHandler in go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc now honor otelgrpc.WithMessageEvents options. (otelgrpc: Fix stats handlers to honor WithMessageEvents option #4536)

[codecov]

Codecov Report

Merging #4546 (f215b54) into main (c1ac303) will not change coverage.
The diff coverage is 31.4%.

@@          Coverage Diff          @@
##            main   #4546   +/-   ##
=====================================
  Coverage   80.8%   80.8%           
=====================================
  Files        150     150           
  Lines      10371   10371           
=====================================
  Hits        8387    8387           
  Misses      1840    1840           
  Partials     144     144           

Files	Coverage Δ
config/config.go	100.0% <ø> (ø)
config/trace.go	100.0% <100.0%> (ø)
...github.com/aws/aws-lambda-go/otellambda/version.go	60.0% <100.0%> (ø)
...on/github.com/aws/aws-sdk-go-v2/otelaws/version.go	60.0% <100.0%> (ø)
...hub.com/emicklei/go-restful/otelrestful/version.go	60.0% <100.0%> (ø)
...tation/github.com/gin-gonic/gin/otelgin/version.go	60.0% <100.0%> (ø)
...entation/github.com/gorilla/mux/otelmux/version.go	60.0% <100.0%> (ø)
...ation/github.com/labstack/echo/otelecho/version.go	60.0% <100.0%> (ø)
...ntation/google.golang.org/grpc/otelgrpc/version.go	100.0% <100.0%> (ø)
...ntation/gopkg.in/macaron.v1/otelmacaron/version.go	60.0% <100.0%> (ø)
... and 26 more