Release v1.25.0/v0.47.0/v0.0.8/v0.1.0-alpha

[MrAlias]

Added

• Add WithProxy option in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp. (otlptracehttp, otlpmetrichttp: Add WithProxy option #4906)
• Add WithProxy option in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlptracehttp. (otlptracehttp, otlpmetrichttp: Add WithProxy option #4906)
• Add AddLink method to the Span interface in go.opentelemetry.io/otel/trace. (trace: Add Span.AddLink method #5032)
• The Enabled method is added to the Logger interface in go.opentelemetry.io/otel/log.
  This method is used to notify users if a log record will be emitted or not. (Add the Enabled method to the Logger #5071)
• Add SeverityUndefined const to go.opentelemetry.io/otel/log.
  This value represents an unset severity level. (Add SeverityUndefined to otel/log #5072)
• Add Empty function in go.opentelemetry.io/otel/log to return a KeyValue for an empty value. (logs: Add empty value for KeyValue #5076)
• Add go.opentelemetry.io/otel/log/global to manage the global LoggerProvider.
  This package is provided with the anticipation that all functionality will be migrate to go.opentelemetry.io/otel when go.opentelemetry.io/otel/log stabilizes.
  At which point, users will be required to migrage their code, and this package will be deprecated then removed. (Add global log package #5085)
• Add support for Summary metrics in the go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp and go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc exporters. (Add Summary support to the OTLP exporter #5100)
• Add otel.scope.name and otel.scope.version tags to spans exported by go.opentelemetry.io/otel/exporters/zipkin. (exporters/zipkin: Add use new scope attributes #5108)
• Add support for AddLink to go.opentelemetry.io/otel/bridge/opencensus. (Add support for AddLink to the OpenCensus bridge #5116)
• Add String method to Value and KeyValue in go.opentelemetry.io/otel/log. (log: Add String method to Value and KeyValue #5117)
• Add Exemplar support to go.opentelemetry.io/otel/exporters/prometheus. (Add exemplar support to the prometheus exporter #5111)
• Add metric semantic conventions to go.opentelemetry.io/otel/semconv/v1.24.0. Future semconv packages will include metric semantic conventions as well. (semconv: Add metric generation #4528)

Changed

• SpanFromContext and SpanContextFromContext in go.opentelemetry.io/otel/trace no longer make a heap allocation when the passed context has no span. (trace: SpanFromContext and SpanContextFromContext make no allocs #5049)
• go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc and go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc now create a gRPC client in idle mode and with "dns" as the default resolver using grpc.NewClient. (Bump bump google.golang.org/grpc from 1.62.1 to 1.63.0 and use grpc.NewClient instead of grpc.DialContext #5151)
  Because of that WithDialOption ignores grpc.WithBlock, grpc.WithTimeout, and grpc.WithReturnConnectionError.
  Notice that grpc.DialContext which was used before is now deprecated.

Fixed

• Clarify the documentation about equivalence guarantees for the Set and Distinct types in go.opentelemetry.io/otel/attribute. (Use Distinct instead of Set for map keys #5027)
• Prevent default ErrorHandler self-delegation. (Prevent default ErrorHandler self-delegation #5137)
• Update all dependencies to address GO-2024-2687. (Address GO-2024-2687 #5139)

Removed

• Drop support for Go 1.20. (Drop support for Go 1.20 #4967)

Deprecated

• Deprecate go.opentelemetry.io/otel/attribute.Sortable type. (Deprecate Sortable #4734)
• Deprecate go.opentelemetry.io/otel/attribute.NewSetWithSortable function. (Deprecate Sortable #4734)
• Deprecate go.opentelemetry.io/otel/attribute.NewSetWithSortableFiltered function. (Deprecate Sortable #4734)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.7%. Comparing base (82b49b4) to head (f8b54dd).

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #5154   +/-   ##
=====================================
  Coverage   83.7%   83.7%           
=====================================
  Files        252     252           
  Lines      16458   16458           
=====================================
  Hits       13778   13778           
  Misses      2389    2389           
  Partials     291     291           

Files	Coverage Δ
bridge/opencensus/version.go	100.0% <100.0%> (ø)
...xporters/otlp/otlpmetric/otlpmetricgrpc/version.go	100.0% <100.0%> (ø)
...xporters/otlp/otlpmetric/otlpmetrichttp/version.go	100.0% <100.0%> (ø)
exporters/otlp/otlptrace/version.go	100.0% <100.0%> (ø)
sdk/metric/version.go	100.0% <100.0%> (ø)
sdk/version.go	100.0% <100.0%> (ø)
version.go	100.0% <100.0%> (ø)