go.opentelemetry.io/otel/sdk

Added

• The go.opentelemetry.io/otel/semconv/v1.33.0 package. The package contains semantic conventions from the v1.33.0 version of the OpenTelemetry Semantic Conventions. See the migration documentation for information on how to upgrade from go.opentelemetry.io/otel/semconv/v1.32.0.(#6799)
• The go.opentelemetry.io/otel/semconv/v1.34.0 package. The package contains semantic conventions from the v1.34.0 version of the OpenTelemetry Semantic Conventions. (#6812)
• Add metric's schema URL as otel_scope_schema_url label in go.opentelemetry.io/otel/exporters/prometheus. (#5947)
• Add metric's scope attributes as otel_scope_[attribute] labels in go.opentelemetry.io/otel/exporters/prometheus. (#5947)
• Add EventName to EnabledParameters in go.opentelemetry.io/otel/log. (#6825)
• Add EventName to EnabledParameters in go.opentelemetry.io/otel/sdk/log. (#6825)
• Changed handling of go.opentelemetry.io/otel/exporters/prometheus metric renaming to add unit suffixes when it doesn't match one of the pre-defined values in the unit suffix map. (#6839)

Changed

• The semantic conventions have been upgraded from v1.26.0 to v1.34.0 in go.opentelemetry.io/otel/bridge/opentracing. (#6827)
• The semantic conventions have been upgraded from v1.26.0 to v1.34.0 in go.opentelemetry.io/otel/exporters/zipkin. (#6829)
• The semantic conventions have been upgraded from v1.26.0 to v1.34.0 in go.opentelemetry.io/otel/metric. (#6832)
• The semantic conventions have been upgraded from v1.26.0 to v1.34.0 in go.opentelemetry.io/otel/sdk/resource. (#6834)
• The semantic conventions have been upgraded from v1.26.0 to v1.34.0 in go.opentelemetry.io/otel/sdk/trace. (#6835)
• The semantic conventions have been upgraded from v1.26.0 to v1.34.0 in go.opentelemetry.io/otel/trace. (#6836)
• Record.Resource now returns *resource.Resource instead of resource.Resource in go.opentelemetry.io/otel/sdk/log. (#6864)
• Retry now shows error cause for context timeout in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc, go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc, go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc, go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp, go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp, go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp. (#6898)

Fixed

• Stop stripping trailing slashes from configured endpoint URL in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc. (#6710)
• Stop stripping trailing slashes from configured endpoint URL in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp. (#6710)
• Stop stripping trailing slashes from configured endpoint URL in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc. (#6710)
• Stop stripping trailing slashes from configured endpoint URL in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp. (#6710)
• Validate exponential histogram scale range for Prometheus compatibility in go.opentelemetry.io/otel/exporters/prometheus. (#6822)
• Context cancellation during metric pipeline produce does not corrupt data in go.opentelemetry.io/otel/sdk/metric. (#6914)

Removed

• go.opentelemetry.io/otel/exporters/prometheus no longer exports otel_scope_info metric. (#6770)

Added

• Add exponential histogram support in go.opentelemetry.io/otel/exporters/prometheus. (#6421)
• The go.opentelemetry.io/otel/semconv/v1.31.0 package. The package contains semantic conventions from the v1.31.0 version of the OpenTelemetry Semantic Conventions. See the migration documentation for information on how to upgrade from go.opentelemetry.io/otel/semconv/v1.30.0. (#6479)
• Add Recording, Scope, and Record types in go.opentelemetry.io/otel/log/logtest. (#6507)
• Add WithHTTPClient option to configure the http.Client used by go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp. (#6751)
• Add WithHTTPClient option to configure the http.Client used by go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp. (#6752)
• Add WithHTTPClient option to configure the http.Client used by go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp. (#6688)
• Add ValuesGetter in go.opentelemetry.io/otel/propagation, a TextMapCarrier that supports retrieving multiple values for a single key. (#5973)
• Add Values method to HeaderCarrier to implement the new ValuesGetter interface in go.opentelemetry.io/otel/propagation. (#5973)
• Update Baggage in go.opentelemetry.io/otel/propagation to retrieve multiple values for a key when the carrier implements ValuesGetter. (#5973)
• Add AssertEqual function in go.opentelemetry.io/otel/log/logtest. (#6662)
• The go.opentelemetry.io/otel/semconv/v1.32.0 package. The package contains semantic conventions from the v1.32.0 version of the OpenTelemetry Semantic Conventions. See the migration documentation for information on how to upgrade from go.opentelemetry.io/otel/semconv/v1.31.0(#6782)
• Add Transform option in go.opentelemetry.io/otel/log/logtest. (#6794)
• Add Desc option in go.opentelemetry.io/otel/log/logtest. (#6796)

Removed

• Drop support for [Go 1.22]. (#6381, #6418)
• Remove Resource field from EnabledParameters in go.opentelemetry.io/otel/sdk/log. (#6494)
• Remove RecordFactory type from go.opentelemetry.io/otel/log/logtest. (#6492)
• Remove ScopeRecords, EmittedRecord, and RecordFactory types from go.opentelemetry.io/otel/log/logtest. (#6507)
• Remove AssertRecordEqual function in go.opentelemetry.io/otel/log/logtest, use AssertEqual instead. (#6662)

Changed

• ⚠️ Update github.com/prometheus/client_golang to v1.21.1, which changes the NameValidationScheme to UTF8Validation. This allows metrics names to keep original delimiters (e.g. .), rather than replacing with underscores. This can be reverted by setting github.com/prometheus/common/model.NameValidationScheme to LegacyValidation in github.com/prometheus/common/model. (#6433)
• Initialize map with len(keys) in NewAllowKeysFilter and NewDenyKeysFilter to avoid unnecessary allocations in go.opentelemetry.io/otel/attribute. (#6455)
• go.opentelemetry.io/otel/log/logtest is now a separate Go module. (#6465)
• go.opentelemetry.io/otel/sdk/log/logtest is now a separate Go module. (#6466)
• Recorder in go.opentelemetry.io/otel/log/logtest no longer separately stores records emitted by loggers with the same instrumentation scope. (#6507)
• Improve performance of BatchProcessor in go.opentelemetry.io/otel/sdk/log by not exporting when exporter cannot accept more. (#6569, #6641)

Deprecated

• Deprecate support for model.LegacyValidation for go.opentelemetry.io/otel/exporters/prometheus. (#6449)

Fixes

• Stop percent encoding header environment variables in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc and go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp. (#6392)
• Ensure the noopSpan.tracerProvider method is not inlined in go.opentelemetry.io/otel/trace so the go.opentelemetry.io/auto instrumentation can instrument non-recording spans. (#6456)
• Use a sync.Pool instead of allocating metricdata.ResourceMetrics in go.opentelemetry.io/otel/exporters/prometheus. (#6472)