Overview

Added

• Add experimental observability metrics to BatchProcessor in go.opentelemetry.io/otel/sdk/log. (#7124)
• Add the experimental WithUnsafeAttributes no-copy attribute option to go.opentelemetry.io/otel/metric/x for future performance improvements. This API is a work in progress. (#8251)
• Add Map and MapValue functions for the new MAP attribute type in go.opentelemetry.io/otel/attribute. (#8445)
• Support MAP attributes in go.opentelemetry.io/otel/exporters/otlp/otlptrace. (#8453)
• Support MAP attributes in go.opentelemetry.io/otel/exporters/otlp/otlplog. (#8453)
• Support MAP attributes in go.opentelemetry.io/otel/exporters/otlp/otlpmetric. (#8453)
• Support MAP attributes in go.opentelemetry.io/otel/exporters/zipkin. (#8453)
• Apply AttributeValueLengthLimit recursively to values contained in attribute.MAP attributes in go.opentelemetry.io/otel/sdk/trace. (#8454)
• Remove duplicate keys from attribute.MAP values in go.opentelemetry.io/otel/sdk/resource using last-value-wins semantics. (#8471)
• Remove duplicate keys by default from attribute.MAP values in instrumentation scope attributes in go.opentelemetry.io/otel/sdk/log using last-value-wins semantics. (#8471)
• Remove duplicate keys by default from attribute.MAP values in span, event, link, and instrumentation scope attributes in go.opentelemetry.io/otel/sdk/trace using last-value-wins semantics. (#8471)
• Remove duplicate keys by default from attribute.MAP values in measurement and instrumentation scope attributes in go.opentelemetry.io/otel/sdk/metric using last-value-wins semantics. (#8471)
• Extend WithAllowKeyDuplication in go.opentelemetry.io/otel/sdk/log to disable duplicate-key removal in attribute.MAP values for instrumentation scope attributes. (#8471)
• Add the go.opentelemetry.io/otel/semconv/v1.42.0 package. The package contains semantic conventions from the v1.42.0 version of the OpenTelemetry Semantic Conventions. See the migration documentation for information on how to upgrade from go.opentelemetry.io/otel/semconv/v1.41.0. (#8484)
• Add WithoutPanicRecording as a TracerProviderOption in go.opentelemetry.io/otel/sdk/trace to disable exception event recording for panics. (#8532)
• Add the go.opentelemetry.io/otel/semconv/v1.43.0 package. The package contains semantic conventions from the v1.43.0 version of the OpenTelemetry Semantic Conventions. See the migration documentation for information on how to upgrade from go.opentelemetry.io/otel/semconv/v1.42.0. (#8628)

Changed

• HistogramReservoir in go.opentelemetry.io/otel/sdk/metric/exemplar now uses a time-unbiased sampling algorithm for exemplars. (#8306)
• ⚠️ Breaking Change: Use go.opentelemetry.io/otel/attribute.Value and go.opentelemetry.io/otel/attribute.KeyValue for log bodies and attributes in go.opentelemetry.io/otel/log, go.opentelemetry.io/otel/log/logtest, go.opentelemetry.io/otel/sdk/log, and go.opentelemetry.io/otel/sdk/log/logtest. (#8490)
• Encode log bodies and attributes as go.opentelemetry.io/otel/attribute.Value JSON in go.opentelemetry.io/otel/exporters/stdout/stdoutlog. (#8490)
• Improve the performance of hashing BOOLSLICE, INT64SLICE, FLOAT64SLICE, and STRINGSLICE attribute values by avoiding reflection for short slices in go.opentelemetry.io/otel/attribute. (#8511)
• ⚠️ Breaking Change: WithEndpointURL in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp no longer appends the default signal path when an endpoint URL has no path, making the behavior consistent with go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp and with setting the endpoint through OTEL_EXPORTER_OTLP_METRICS_ENDPOINT. If the URL has no path component, the root path (/) is used. Use WithEndpointURL(url.JoinPath(endpoint, "/v1/metrics")) to preserve the previous behavior. (#8538)
• ⚠️ Breaking Change: WithEndpointURL in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp no longer appends the default signal path when an endpoint URL has no path, making the behavior consistent with go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp and with setting the endpoint through OTEL_EXPORTER_OTLP_TRACES_ENDPOINT. If the URL has no path component, the root path (/) is used. Use WithEndpointURL(url.JoinPath(endpoint, "/v1/traces")) to preserve the previous behavior. (#8538)

Deprecated

• Deprecate WithExportBufferSize in go.opentelemetry.io/otel/sdk/log. The option remains available for source compatibility but no longer affects behavior; BatchProcessor no longer maintains a separate export-request buffer. (#8620)

Removed

• ⚠️ Breaking Change: Remove Kind, Value, KeyValue, their constructors, and attribute conversion helpers from go.opentelemetry.io/otel/log. (#8490)
• ⚠️ Breaking Change: Remove the AttributeValueLengthLimit and AttributeCountLimit fields from RecordFactory in go.opentelemetry.io/otel/sdk/log/logtest; records produced by the factory now keep attribute limits disabled so test code can append exact attributes. (#8556)

Fixed

• Apply TLS certificates configured through environment variables to gRPC connections in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc.
• Prevent panics in go.opentelemetry.io/otel/bridge/opentracing when OpenTracing baggage is propagated concurrently with Span.SetBaggageItem.
• Fix an off-by-one error in FixedSizeReservoir in go.opentelemetry.io/otel/sdk/metric/exemplar that prevented the first exemplar from being sampled after the reservoir was filled. (#8309)
• Interpret HTTP Retry-After header values as seconds instead of nanoseconds when retrying OTLP HTTP exports in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp, go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp, and go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp. (#8383)
• Fix a memory leak in the Reservoir implementation in go.opentelemetry.io/otel/sdk/metric/exemplar, where storing the full context.Context pinned large objects such as gRPC transport buffers. (#8389)
• Prevent a non-empty attribute set whose computed hash is zero from collapsing to an empty set in go.opentelemetry.io/otel/attribute. (#8402)
• Fix histogram data point reuse in go.opentelemetry.io/otel/sdk/metric aggregation to avoid leaking stale sum, minimum, and maximum values when they are disabled in subsequent collections. (#8403)
• Avoid preallocating scope attributes when they are disabled in go.opentelemetry.io/otel/exporters/prometheus. (#8404)
• Support HTTP-date values in the HTTP Retry-After header when retrying OTLP HTTP exports in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp, go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp, and go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp. (#8417)
• Reduce histogram heap allocations by reusing BucketCounts and Exemplars slices across Collect cycles in the cumulative histogram aggregation in go.opentelemetry.io/otel/sdk/metric. (#8428)
• Fix go.opentelemetry.io/otel/exporters/stdout/stdouttrace self-observability to record error.type on the operation-duration histogram when the exportedSpans metric is disabled. (#8432)
• Stop including trace exporter endpoint configuration in internal logs from go.opentelemetry.io/otel/sdk/trace, go.opentelemetry.io/otel/exporters/otlp/otlptrace, go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc, go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp, and go.opentelemetry.io/otel/exporters/zipkin. (#8438)
• Fix invalid error formatting for out-of-range JSON code values in go.opentelemetry.io/otel/codes. (#8497)
• Clarify in go.opentelemetry.io/otel/log that Logger.Enabled should be checked for every log emission because its result may change over time. (#8565)
• Preserve user-provided exception attributes while independently deriving missing exception message and type attributes in go.opentelemetry.io/otel/sdk/log. (#8566)
• Make WithAttributeCountLimit(0) and OTEL_LOGRECORD_ATTRIBUTE_COUNT_LIMIT=0 discard all log record attributes in go.opentelemetry.io/otel/sdk/log. (#8570)
• Clarify that the Record methods of Float64Histogram and Int64Histogram in go.opentelemetry.io/otel/metric expect non-negative values. (#8574)
• Clarify in go.opentelemetry.io/otel/log that LoggerProvider implementations should retain an empty Logger name instead of replacing it with a default. (#8587)
• Ensure that the built-in processors in go.opentelemetry.io/otel/sdk/log call exporter ForceFlush during Shutdown. (#8599)
• Prevent panics in go.opentelemetry.io/otel/bridge/opentracing when OpenTracing baggage is propagated concurrently with Span.SetBaggageItem. (GHSA-42cj-99w8-cp2p)
• Prevent processor operations in go.opentelemetry.io/otel/sdk/log from overlapping with processor shutdown or running after LoggerProvider shutdown. (#8608)
• Prevent BatchProcessor in go.opentelemetry.io/otel/sdk/log from busy-spinning under exporter backpressure and serialize dequeue, export, force-flush, and shutdown work in one worker. (#8620)
• Make BatchProcessor in go.opentelemetry.io/otel/sdk/log return errors encountered while draining records during ForceFlush and Shutdown, while continuing to attempt later batches as long as the request context remains valid. (#8620)
• Keep the default BatchProcessor maximum export batch size in go.opentelemetry.io/otel/sdk/log at or below the configured maximum queue size. (#8620)

What's Changed

• fix(semconv): share metric option pools by @macayu17 in https://github.com/open-telemetry/opentelemetry-go/pull/8371
• chore(deps): update module github.com/alecthomas/chroma/v2 to v2.26.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8381
• chore(deps): update codspeedhq/action action to v4.17.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8388
• chore(deps): update module github.com/rogpeppe/go-internal to v1.15.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8382
• chore(deps): update module github.com/jgautheron/goconst to v1.10.2 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8380
• chore(deps): update module github.com/mattn/go-runewidth to v0.0.24 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8394
• fix(deps): update github.com/opentracing-contrib/go-grpc/test digest to bc171b2 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8405
• chore(deps): update module github.com/securego/gosec/v2 to v2.27.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8406
• fix(deps): update golang.org/x to c761662 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8384
• chore(deps): update module github.com/butuzov/mirror to v1.3.3 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8390
• chore(deps): update module github.com/securego/gosec/v2 to v2.27.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8413
• fix(otlphttp): honor retry-after seconds by @AbhiPrasad in https://github.com/open-telemetry/opentelemetry-go/pull/8383
• chore(deps): update module github.com/mattn/go-colorable to v0.1.15 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8391
• fix(deps): update module github.com/prometheus/common to v0.68.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8395
• chore(deps): update github.com/charmbracelet/ultraviolet digest to 6cf7526 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8408
• docs: update AGENTS.md with CHANGELOG conventions by @dashpole in https://github.com/open-telemetry/opentelemetry-go/pull/8393
• chore(deps): update github/codeql-action action to v4.36.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8416
• chore(deps): update actions/checkout action to v6.0.3 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8418
• chore(deps): update github.com/golangci/rowserrcheck digest to 0ec5bd2 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8419
• sdk/metric/internal/x: generate x package from x component template by @Mentigen in https://github.com/open-telemetry/opentelemetry-go/pull/8397
• chore(deps): update github/codeql-action action to v4.36.2 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8426
• fix(deps): update module github.com/prometheus/common to v0.68.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8420
• fix(deps): update golang.org/x by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8421
• chore(deps): update module github.com/ldez/gomoddirectives to v0.9.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8422
• chore(deps): update module github.com/dlclark/regexp2/v2 to v2.1.2 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8429
• chore(deps): update codecov/codecov-action action to v7 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8435
• fix(deps): update golang.org/x by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8437
• chore(deps): update module github.com/dlclark/regexp2/v2 to v2.2.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8434
• fix(deps): update module go.opentelemetry.io/collector/pdata to v1.60.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8442
• fix(deps): update googleapis to 4308a22 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8440
• chore(deps): update golang.org/x by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8439
• chore(deps): update github.com/charmbracelet/ultraviolet digest to 35bcb73 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8436
• fix(stdouttrace/observ): record error.type on opDuration when exportedSpans is disabled by @yumosx in https://github.com/open-telemetry/opentelemetry-go/pull/8432
• sdk/trace: avoid logging exporter endpoint configuration by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8438
• Cleanup limitedSyncMap, and add tests by @dashpole in https://github.com/open-telemetry/opentelemetry-go/pull/8302
• fix(otlphttp): support retry-after HTTP-date by @AbhiPrasad in https://github.com/open-telemetry/opentelemetry-go/pull/8417
• Fix incorrect formatting verbs in opencensus bridge by @dashpole in https://github.com/open-telemetry/opentelemetry-go/pull/8424
• fix: off-by-one bug for FixedSizeReservoir by @dashpole in https://github.com/open-telemetry/opentelemetry-go/pull/8309
• sdk/metric: reuse cumulative-histogram Collect buffers to reduce heap usage by @sudowork in https://github.com/open-telemetry/opentelemetry-go/pull/8428
• Fix memory leak in exemplar reservoir by storing SpanContext instead of Context by @dashpole in https://github.com/open-telemetry/opentelemetry-go/pull/8389
• fix: clear stale histogram fields on datapoint reuse by @dashpole in https://github.com/open-telemetry/opentelemetry-go/pull/8403
• prometheus: avoid preallocating scope attributes when disabled by @dashpole in https://github.com/open-telemetry/opentelemetry-go/pull/8404
• Document that WithExemplarFilter(nil) is not supported by @dashpole in https://github.com/open-telemetry/opentelemetry-go/pull/8392
• fix(deps): update googleapis to 7ab31c2 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8447
• chore(deps): update golang.org/x to fb80ec8 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8444
• chore(deps): update golang.org/x to v0.56.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8448
• Add WithUnsafeAttributes to support no-copy dynamic metric API calls by @dashpole in https://github.com/open-telemetry/opentelemetry-go/pull/8251
• fix(attribute): prevent zero-hash collapse to empty set by @dashpole in https://github.com/open-telemetry/opentelemetry-go/pull/8402
• chore(deps): update codspeedhq/action action to v4.17.5 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8452
• attribute: add MAP type support by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8445
• fix(deps): update golang.org/x by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8451
• chore(deps): update module charm.land/lipgloss/v2 to v2.0.4 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8455
• chore(deps): update github.com/charmbracelet/ultraviolet digest to 2399af7 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8460
• chore(deps): update golang.org/x to 72dfd24 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8462
• fix(deps): update googleapis to 62b3387 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8463
• sdk/trace: apply AttributeValueLengthLimit to attribute.MAP by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8454
• exporters: support MAP attributes by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8453
• chore(deps): update module github.com/dlclark/regexp2/v2 to v2.2.2 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8464
• chore(deps): update module github.com/pelletier/go-toml/v2 to v2.4.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8470
• chore(deps): update module github.com/alecthomas/chroma/v2 to v2.27.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8469
• fix(deps): update module github.com/prometheus/common to v0.69.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8472
• chore(deps): update module github.com/firefart/nonamedreturns to v1.0.7 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8467
• chore(deps): update golang.org/x to 4de325e by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8466
• Exporter code cleanup by @ash2k in https://github.com/open-telemetry/opentelemetry-go/pull/8457
• [chore] add CNCF Slack join instructions by @cijothomas in https://github.com/open-telemetry/opentelemetry-go/pull/8456
• chore(deps): update golang.org/x to 9b6dc03 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8474
• fix(deps): update golang.org/x to v1.4.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8478
• sdk: deduplicate MAP attribute keys by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8471
• attribute: inline hashing for small SLICE and MAP values by @Dipanshusinghh in https://github.com/open-telemetry/opentelemetry-go/pull/8476
• attribute: test map equivalence with duplicate keys by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8473
• fix(deps): update googleapis to 87f3d3e by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8483
• chore(deps): update module github.com/cyphar/filepath-securejoin to v0.7.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8486
• chore(deps): update golang.org/x to a6991f1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8482
• chore(deps): update actions/checkout action to v7 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8487
• chore(deps): update codspeedhq/action action to v4.17.6 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8485
• chore(deps): update golang.org/x to e028bae by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8493
• Generate and upgrade to semconv/v1.42.0 by @MrAlias in https://github.com/open-telemetry/opentelemetry-go/pull/8484
• chore(deps): update otel/weaver docker tag to v0.24.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8494
• chore(deps): update github.com/charmbracelet/ultraviolet digest to f39628c by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8498
• chore(deps): update module github.com/cloudflare/circl to v1.6.4 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8500
• fix(deps): update googleapis to b703f56 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8502
• chore(deps): update module github.com/pelletier/go-toml/v2 to v2.4.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8503
• log: use attribute values for records by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8490
• codes: fix invalid code format string by @HNO3Miracle in https://github.com/open-telemetry/opentelemetry-go/pull/8497
• chore(deps): update module github.com/rogpeppe/go-internal to v1.15.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8505
• fix(deps): update module go.opentelemetry.io/collector/pdata to v1.61.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8506
• chore(deps): update actions/cache action to v6 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8507
• chore(deps): update golang.org/x by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8508
• chore(deps): update otel/weaver docker tag to v0.24.2 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8509
• Fix/makefile go version by @Vatsal-Chaudhary in https://github.com/open-telemetry/opentelemetry-go/pull/8496
• chore(deps): update actions/setup-go action to v6.5.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8516
• chore(deps): update module github.com/pelletier/go-toml/v2 to v2.4.2 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8513
• attribute: improve attribute types GoDoc by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8489
• otlpmetricgrpc: avoid DNS in self-observability test by @JuvenR in https://github.com/open-telemetry/opentelemetry-go/pull/8514
• fix(deps): update github.com/opentracing-contrib/go-grpc/test digest to c961bd5 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8512
• chore(deps): update module github.com/go-critic/go-critic to v0.14.4 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8519
• chore(deps): update golang.org/x/telemetry digest to 59b4966 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8520
• fix(deps): update module github.com/opentracing-contrib/go-grpc to v0.1.4 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8515
• fix(deps): update golang.org/x by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8521
• chore(deps): update codspeedhq/action action to v4.18.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8517
• chore(deps): update module go.augendre.info/fatcontext to v0.10.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8524
• chore(deps): update golang.org/x/telemetry digest to b709645 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8523
• chore(deps): update actions/cache action to v6.1.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8525
• gotmpl: update headers to enable golangci-lint on generated files by @Dipanshusinghh in https://github.com/open-telemetry/opentelemetry-go/pull/8481
• chore(deps): update module github.com/prometheus/procfs to v0.21.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8526
• attribute: skip reflection for short slices in hashValue by @lavish-gambhir in https://github.com/open-telemetry/opentelemetry-go/pull/8511
• chore(deps): update module github.com/klauspost/cpuid/v2 to v2.4.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8529
• chore(deps): update module github.com/prometheus/procfs to v0.21.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8528
• fix(deps): update module google.golang.org/grpc to v1.82.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8530
• fix(deps): update googleapis to 925bb5d by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8533
• chore: Move inactive members to emeritus by @opentelemetrybot in https://github.com/open-telemetry/opentelemetry-go/pull/8398
• chore(deps): update github.com/golangci/rowserrcheck digest to 399602f by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8539
• chore(deps): update fossas/fossa-action action to v2 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8558
• chore(deps): update github/codeql-action action to v4.36.3 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8557
• chore(deps): update module github.com/firefart/nonamedreturns to v1.0.8 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8559
• chore(deps): update module github.com/pelletier/go-toml/v2 to v2.4.3 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8563
• chore(deps): update module charm.land/lipgloss/v2 to v2.0.5 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8562
• chore(deps): update github.com/charmbracelet/ultraviolet digest to f5a850f by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8561
• fix(otlptracehttp,otlpmetrichttp): do not append default signal path by @basti1302 in https://github.com/open-telemetry/opentelemetry-go/pull/8538
• fix(deps): update googleapis to f0a9213 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8567
• log: clarify Logger.Enabled guidance by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8565
• chore(deps): update module golang.org/x/text to v0.39.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8568
• chore(deps): update module go.opentelemetry.io/collector/featuregate to v1.62.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8569
• fix(deps): update module go.opentelemetry.io/collector/pdata to v1.62.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8572
• chore(deps): update codspeedhq/action action to v4.18.2 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8571
• sdk/log/logtest: remove attribute limit fields from RecordFactory by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8556
• sdk/log: honor zero attribute count limit by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8570
• fix(deps): update golang.org/x by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8577
• chore(deps): update github/codeql-action action to v4.37.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8576
• Clarify that Histogram's Record method expect non-negative values by @psx95 in https://github.com/open-telemetry/opentelemetry-go/pull/8574
• chore(deps): update golang.org/x by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8579
• chore(deps): update codspeedhq/action action to v4.18.4 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8580
• sdk/log: derive missing exception attributes by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8566
• chore(deps): update lycheeverse/lychee-action action to v2.9.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8589
• sdk/trace: add WithoutPanicRecording provider option by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8532
• chore(deps): update codspeedhq/action action to v4.18.5 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8590
• log: clarify EventName uniqueness guidance by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8586
• sdk/log: document duplicate key receiver behavior by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8588
• chore(deps): update actions/stale action to v10.4.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8593
• fix(deps): update module github.com/prometheus/common to v0.70.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8594
• log: clarify empty Logger name handling by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8587
• chore(deps): update github.com/charmbracelet/ultraviolet digest to 4bee191 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8597
• chore(deps): update module github.com/dlclark/regexp2/v2 to v2.5.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8596
• ci: run bare metal benchmarks in a container by @trask in https://github.com/open-telemetry/opentelemetry-go/pull/8575
• chore(deps): update ubuntu:24.04 docker digest to 4fbb8e6 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8600
• fix(deps): update googleapis by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8602
• chore(deps): update ubuntu docker tag to v26 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8601
• chore(deps): update google.golang.org/genproto/googleapis/api digest to 142c488 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8603
• fix(deps): update googleapis to f5fc221 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8604
• Remove vanity import tooling by @MrAlias in https://github.com/open-telemetry/opentelemetry-go/pull/8609
• chore(deps): update module github.com/securego/gosec/v2 to v2.28.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8605
• chore(deps): update dependency codespell to v2.4.3 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8612
• chore(deps): update ubuntu:26.04 docker digest to 651ba3f by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8616
• fix(deps): update module google.golang.org/grpc to v1.82.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8615
• chore(deps): update actions/setup-go action to v7 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8617
• chore(deps): update github/codeql-action action to v4.37.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8621
• chore(deps): update golang.org/x/telemetry digest to dad6939 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8582
• chore(deps): update module github.com/dlclark/regexp2/v2 to v2.5.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8625
• chore(deps): update module github.com/mattn/go-isatty to v0.0.23 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8619
• fix(deps): update googleapis to e75dac1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8614
• chore(deps): update golang.org/x/telemetry digest to bdb8988 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8627
• chore(deps): update ubuntu:26.04 docker digest to 3131b4c by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8624
• chore(deps): update module github.com/nunnatsa/ginkgolinter to v0.23.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8638
• chore(deps): update module github.com/dlclark/regexp2/v2 to v2.5.2 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8636
• chore(deps): update module go.opentelemetry.io/collector/featuregate to v1.63.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8645
• Fix benchmark ci after using the container environment by @XSAM in https://github.com/open-telemetry/opentelemetry-go/pull/8635
• fix(deps): update module github.com/prometheus/common to v0.70.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8650
• chore(deps): update github.com/charmbracelet/ultraviolet digest to 7cc6674 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8637
• fix(deps): update golang.org/x/exp digest to 764159d by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8633
• fix(deps): update googleapis to 0afa2a6 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8639
• chore(deps): update actions/checkout action to v7.0.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8640
• chore(deps): update github/codeql-action action to v4.37.3 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8644
• fix(deps): update module github.com/prometheus/client_golang to v1.24.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8641
• Generate and upgrade to semconv/v1.43.0 by @osullivandonal in https://github.com/open-telemetry/opentelemetry-go/pull/8628
• fix(deps): update module go.opentelemetry.io/collector/pdata to v1.63.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8646
• chore(deps): update ubuntu docker tag to v26 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8647
• feat: use time-unbiased algorithm for histogram reservoir by @dashpole in https://github.com/open-telemetry/opentelemetry-go/pull/8306
• sdk/log: include ForceFlush in built-in processor Shutdown by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8599
• sdk/log: self observability: batch log processor metrics by @mahendrabishnoi2 in https://github.com/open-telemetry/opentelemetry-go/pull/7124
• fix(deps): update module go.opentelemetry.io/proto/otlp to v1.11.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8651
• chore(deps): update github.com/timakin/bodyclose digest to 857993a by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8652
• fix(deps): update googleapis to 7274b71 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8655
• fix(changelog): update self-observability environment variable to OTEL_GO_X_OBSERVABILITY by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8618
• sdk: consolidate attribute normalization in attrnorm by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8611
• chore(deps): update module github.com/mattn/go-isatty to v0.0.24 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8656
• chore(deps): update ossf/scorecard-action action to v2.4.4 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8658
• fix(deps): update module github.com/go-logr/logr to v1.4.4 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8642
• fix(deps): update googleapis to 3fe39f3 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8659
• chore(deps): update module github.com/go-git/go-billy/v5 to v5.9.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8662
• fix(deps): update module github.com/prometheus/client_golang to v1.24.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8661
• chore(deps): update module github.com/mattn/go-runewidth to v0.0.27 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8660
• sdk/log: prevent BatchProcessor busy-spin by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8620
• chore(deps): update otel/weaver docker tag to v0.25.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8664
• fix(deps): update googleapis to b2f2020 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8663
• chore(deps): update module go.yaml.in/yaml/v3 to v3.0.5 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8665
• chore(deps): update codspeedhq/action action to v4.19.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8666
• fix(deps): update github.com/opentracing-contrib/go-grpc/test digest to 064b4d2 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8670
• fix(deps): update golang.org/x to b88d891 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8668
• fix(deps): update googleapis to 6c54ddd by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8669
• chore(deps): update module mvdan.cc/gofumpt to v0.11.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8667
• chore(deps): update otel/weaver docker tag to v0.25.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8673
• fix(deps): update googleapis to 8efbd57 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8676
• chore(deps): update actions/stale action to v11 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8671
• chore(deps): update module github.com/go-git/go-git/v5 to v5.19.2 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8674
• chore(deps): update codspeedhq/action action to v5 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8675
• chore(deps): update module github.com/jgautheron/goconst to v1.11.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8677
• chore(deps): update github/codeql-action action to v4.37.4 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8680
• chore(deps): update github.com/charmbracelet/ultraviolet digest to 19049f2 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8678
• fix(deps): update module google.golang.org/grpc to v1.83.0 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8679
• sdk/log: prevent processor calls after provider shutdown by @pellared in https://github.com/open-telemetry/opentelemetry-go/pull/8608
• tests: fix semconvkit temp module setup by @RedZapdos123 in https://github.com/open-telemetry/opentelemetry-go/pull/8682
• chore(deps): update github/codeql-action action to v4.37.5 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8692
• chore(deps): update github.com/golangci/rowserrcheck digest to d2031e3 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8687
• chore(deps): update module github.com/lucasb-eyer/go-colorful to v1.4.1 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8689
• chore(deps): update codspeedhq/action action to v5.0.2 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8690
• chore(deps): update github.com/charmbracelet/ultraviolet digest to 8b69304 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8691
• fix(deps): update googleapis to 6ac0973 by @renovate[bot] in https://github.com/open-telemetry/opentelemetry-go/pull/8694
• sdk/metric: remove obsolete randomFloat64 TODO by @Mujib-Ahasan in https://github.com/open-telemetry/opentelemetry-go/pull/8685
• Release v1.45.0 by @MrAlias in https://github.com/open-telemetry/opentelemetry-go/pull/8693

New Contributors

• @macayu17 made their first contribution in https://github.com/open-telemetry/opentelemetry-go/pull/8371
• @AbhiPrasad made their first contribution in https://github.com/open-telemetry/opentelemetry-go/pull/8383
• @Mentigen made their first contribution in https://github.com/open-telemetry/opentelemetry-go/pull/8397
• @sudowork made their first contribution in https://github.com/open-telemetry/opentelemetry-go/pull/8428
• @HNO3Miracle made their first contribution in https://github.com/open-telemetry/opentelemetry-go/pull/8497
• @Vatsal-Chaudhary made their first contribution in https://github.com/open-telemetry/opentelemetry-go/pull/8496
• @JuvenR made their first contribution in https://github.com/open-telemetry/opentelemetry-go/pull/8514
• @lavish-gambhir made their first contribution in https://github.com/open-telemetry/opentelemetry-go/pull/8511
• @osullivandonal made their first contribution in https://github.com/open-telemetry/opentelemetry-go/pull/8628
• @RedZapdos123 made their first contribution in https://github.com/open-telemetry/opentelemetry-go/pull/8682
• @Mujib-Ahasan made their first contribution in https://github.com/open-telemetry/opentelemetry-go/pull/8685

Full Changelog: https://github.com/open-telemetry/opentelemetry-go/compare/v1.44.0...v1.45.0