Sourced from io.opentelemetry:opentelemetry-bom-alpha's releases.

Version 1.62.0

API

Context

• Fix GHSA-rcgg-9c38-7xpx: Apply limits to baggage entries for W3CBaggagePropagator, OtTracePropagator, JaegerPropagator (#8378)

SDK

Traces

• Avoid parentContext allocation on span start for the common case (#8332)

Metrics

• Add setMaxExportBatchSize to PeriodicMetricReaderBuilder (#8296)
• Fix PeriodicMetricReader shutdown race that could drop the final flush (#8299)

Exporters

• BREAKING Prometheus: Change default server host from 0.0.0.0 to localhost (#8298)
• BREAKING Prometheus: Stop converting unit "1" to "ratio" (#8252)
• OTLP: Fix null input handling in StringEncoder (#8312)
• OTLP: Align proto field types and wire tag names in marshalers (#8293)
• OTLP: Fix MarshalerUtil sizeRepeatedString calculation (#8284)
• OTLP: Bound JdkHttpSender thread pool size to prevent unbounded thread creation (#8276)
• OTLP Profiles: Split profiles data model into separate sdk-profiles and JFR shim modules (#8207)
• OTLP Profiles: Publish alpha release of opentelemetry-sdk-profiles and opentelemetry-exporter-otlp-profiles (#8351)

Extensions

• BREAKING Declarative config: Extract to new opentelemetry-sdk-extension-declarative-config artifact with new package io.opentelemetry.sdk.autoconfigure.declarativeconfig (#8265)
• Autoconfigure: Add file size validation in OtlpConfigUtil to avoid unsafe cast to int (#8287)
• Declarative config: Fix collection fields to not be initialized to empty by default (#8356)
• Incubator: Add EventToSpanEventBridge to bridge log-based events to span events (#8372)

Testing

• Add @Nullable to equalTo value argument in OpenTelemetryAssertions (#8301)
• Add hasValueSatisfying to LongPointAssert and DoublePointAssert for fuzzy value matching (#8328)
• Add containsPointsSatisfying to metric data asserts for "each given assertion must be satisfied by at least one point, extras allowed" checks on sum, gauge, histogram, exponential histogram, and summary data (#8329)

Project tooling

• Add initial OSGi support (#7964)
• Promote ApiUsageLogger to opentelemetry-common public API (#8318)
• Establish exception logging guidelines and fix inconsistent patterns across exporters and SDK (#8231)
• Add *.impl.* package naming convention for internal code with japicmp compatibility (#8325)
• Add Sonatype dependency audit to build (#8365)

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Sourced from io.opentelemetry:opentelemetry-bom-alpha's changelog.

Changelog

Unreleased

Version 1.63.0 (2026-06-05)

API

• Add missing setAttribute shortcuts to Span and LogRecordBuilder (#8255)
• Promote InstrumentationUtil to public class in io.opentelemetry.api.impl package (#8413)
• Fix index-out-of-bounds in StrictContextStorage (#8294)

Incubating

• BREAKING Remove deprecated ExtendedAttributes and related code (#8395)

SDK

Metrics

• Collect async exemplars when exemplar filter is always_on (#8363)
• Move delta record/collect coordination from instrument to series level (#8313)

Exporters

• Add noop() factory method to SpanExporter and LogRecordExporter (#8435)
• BREAKING OTLP: Remove support for deprecated GrpcSenderProvider and HttpSenderProvider SPI property names (use io.opentelemetry.sdk.common.export.GrpcSenderProvider / io.opentelemetry.sdk.common.export.HttpSenderProvider instead) (#8392)
• OTLP: Bound OkHttp sender dispatchers and surface rejections (#8422)
• Prometheus: Limit exemplar label characters to conform to Prometheus limits (#8362)
• Logging: Fix LoggingSpanExporter.flush() to preserve flush failures (#8361)
• Zipkin: Make exporter self-contained by removing shared internal code dependencies (#8413)

Extensions

• BREAKING Autoconfigure: Remove deprecated otel.experimental.config.file property (#8393)

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