Release v1.42.0/v2.4.0/v0.67.0/v0.36.0/v0.22.0/v0.17.0/v0.15.0/v0.14.0

[pellared]

Added

• Add environment variables propagation carrier in go.opentelemetry.io/contrib/propagators/envcar. (envcar: add environment carrier #8442)

Changed

• Upgrade go.opentelemetry.io/otel/semconv to v1.40.0, including updates across instrumentation and detector modules. (Upgrade to semconv/v1.40.0 #8631)

  • The semantic conventions v1.40.0 release introduces RPC breaking changes applied in this repository:
    • RPC spans and metrics no longer include network.protocol.name, network.protocol.version, or network.transport attributes.
    • rpc.client.request.size, rpc.client.response.size, rpc.server.request.size, and rpc.server.response.size are no longer emitted in go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc.
    • rpc.message span events and their message attributes are no longer emitted in go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc (including when WithMessageEvents is configured).

  See semantic-conventions v1.40.0 release for complete details.

Fixed

• Ignore informational response status codes (100-199) except 101 Switching Protocols when storing the HTTP status code in go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp and go.opentelemetry.io/contrib/instrumentation/github.com/gorilla/mux/otelmux. (otelhttp: Ignore informational response status codes when persisting status #6913)
• Make Body handling in Transport consistent with stdlib in go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp. (fix(otelhttp): make Body handling in Transport consistent with stdlib #8618)
• Fix bucket boundaries for rpc.server.call.duration and rpc.client.call.duration in go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc. (Use correct bucket boundaries for otelgrpc client and server histograms #8642)
• Host resource detector in go.opentelemetry.io/contrib/otelconf now includes os. attributes. (otelconf: host detector should include os as well #8578)

Removed

• Drop support for Go 1.24. (Drop support for 1.24 #8628)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.2%. Comparing base (b1de2c7) to head (3e74b8a).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #8649   +/-   ##
=====================================
  Coverage   82.1%   82.2%           
=====================================
  Files        182     182           
  Lines      13766   13766           
=====================================
+ Hits       11308   11316    +8     
+ Misses      2055    2048    -7     
+ Partials     403     402    -1     

Files with missing lines	Coverage Δ
detectors/aws/ecs/version.go	50.0% <100.0%> (ø)
detectors/aws/eks/version.go	50.0% <100.0%> (ø)
detectors/gcp/version.go	50.0% <100.0%> (ø)
...entation/github.com/gorilla/mux/otelmux/version.go	100.0% <100.0%> (ø)
propagators/aws/version.go	50.0% <100.0%> (ø)
propagators/b3/version.go	50.0% <100.0%> (ø)
propagators/envcar/version.go	100.0% <100.0%> (ø)
propagators/jaeger/version.go	50.0% <100.0%> (ø)
propagators/ot/version.go	50.0% <100.0%> (ø)
samplers/jaegerremote/version.go	100.0% <100.0%> (ø)
... and 1 more

... and 1 file with indirect coverage changes

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[MrAlias]

Can we include #8578?

[pellared]

Can we include #8578?

Done. PR description updated.