build(deps): bump go.opentelemetry.io/otel/sdk from 1.37.0 to 1.40.0

[dependabot]

Bumps go.opentelemetry.io/otel/sdk from 1.37.0 to 1.40.0.

Changelog

Sourced from go.opentelemetry.io/otel/sdk's changelog.

[1.40.0/0.62.0/0.16.0] 2026-02-02

Added

• Add AlwaysRecord sampler in go.opentelemetry.io/otel/sdk/trace. (#7724)
• Add Enabled method to all synchronous instrument interfaces (Float64Counter, Float64UpDownCounter, Float64Histogram, Float64Gauge, Int64Counter, Int64UpDownCounter, Int64Histogram, Int64Gauge,) in go.opentelemetry.io/otel/metric. This stabilizes the synchronous instrument enabled feature, allowing users to check if an instrument will process measurements before performing computationally expensive operations. (#7763)
• Add go.opentelemetry.io/otel/semconv/v1.39.0 package. The package contains semantic conventions from the v1.39.0 version of the OpenTelemetry Semantic Conventions. See the migration documentation for information on how to upgrade from go.opentelemetry.io/otel/semconv/v1.38.0. (#7783, #7789)

Changed

• Improve the concurrent performance of HistogramReservoir in go.opentelemetry.io/otel/sdk/metric/exemplar by 4x. (#7443)
• Improve the concurrent performance of FixedSizeReservoir in go.opentelemetry.io/otel/sdk/metric/exemplar. (#7447)
• Improve performance of concurrent histogram measurements in go.opentelemetry.io/otel/sdk/metric. (#7474)
• Improve performance of concurrent synchronous gauge measurements in go.opentelemetry.io/otel/sdk/metric. (#7478)
• Add experimental observability metrics in go.opentelemetry.io/otel/exporters/stdout/stdoutmetric. (#7492)
• Exporter in go.opentelemetry.io/otel/exporters/prometheus ignores metrics with the scope go.opentelemetry.io/contrib/bridges/prometheus. This prevents scrape failures when the Prometheus exporter is misconfigured to get data from the Prometheus bridge. (#7688)
• Improve performance of concurrent exponential histogram measurements in go.opentelemetry.io/otel/sdk/metric. (#7702)
• The rpc.grpc.status_code attribute in the experimental metrics emitted from go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc is replaced with the rpc.response.status_code attribute to align with the semantic conventions. (#7854)
• The rpc.grpc.status_code attribute in the experimental metrics emitted from go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc is replaced with the rpc.response.status_code attribute to align with the semantic conventions. (#7854)

Fixed

• Fix bad log message when key-value pairs are dropped because of key duplication in go.opentelemetry.io/otel/sdk/log. (#7662)
• Fix DroppedAttributes on Record in go.opentelemetry.io/otel/sdk/log to not count the non-attribute key-value pairs dropped because of key duplication. (#7662)
• Fix SetAttributes on Record in go.opentelemetry.io/otel/sdk/log to not log that attributes are dropped when they are actually not dropped. (#7662)
• Fix missing request.GetBody in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp to correctly handle HTTP/2 GOAWAY frame. (#7794)
• WithHostID detector in go.opentelemetry.io/otel/sdk/resource to use full path for ioreg command on Darwin (macOS). (#7818)

Deprecated

• Deprecate go.opentelemetry.io/otel/exporters/zipkin. For more information, see the OTel blog post deprecating the Zipkin exporter. (#7670)

[1.39.0/0.61.0/0.15.0/0.0.14] 2025-12-05

Added

• Greatly reduce the cost of recording metrics in go.opentelemetry.io/otel/sdk/metric using hashing for map keys. (#7175)
• Add WithInstrumentationAttributeSet option to go.opentelemetry.io/otel/log, go.opentelemetry.io/otel/metric, and go.opentelemetry.io/otel/trace packages. This provides a concurrent-safe and performant alternative to WithInstrumentationAttributes by accepting a pre-constructed attribute.Set. (#7287)
• Add experimental observability for the Prometheus exporter in go.opentelemetry.io/otel/exporters/prometheus. Check the go.opentelemetry.io/otel/exporters/prometheus/internal/x package documentation for more information. (#7345)
• Add experimental observability metrics in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc. (#7353)
• Add temporality selector functions DeltaTemporalitySelector, CumulativeTemporalitySelector, LowMemoryTemporalitySelector to go.opentelemetry.io/otel/sdk/metric. (#7434)
• Add experimental observability metrics for simple log processor in go.opentelemetry.io/otel/sdk/log. (#7548)
• Add experimental observability metrics in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc. (#7459)

... (truncated)

Commits

• a3a5317 Release v1.40.0 (#7859)
• 77785da chore(deps): update github/codeql-action action to v4.32.1 (#7858)
• 56fa1c2 chore(deps): update module github.com/clipperhouse/uax29/v2 to v2.5.0 (#7857)
• 298cbed Upgrade semconv use to v1.39.0 (#7854)
• 3264bf1 refactor: modernize code (#7850)
• fd5d030 chore(deps): update module github.com/grpc-ecosystem/grpc-gateway/v2 to v2.27...
• 8d3b4cb chore(deps): update actions/cache action to v5.0.3 (#7847)
• 91f7cad chore(deps): update github.com/timakin/bodyclose digest to 73d1f95 (#7845)
• fdad1eb chore(deps): update module github.com/grpc-ecosystem/grpc-gateway/v2 to v2.27...
• c46d3ba chore(deps): update golang.org/x/telemetry digest to fcf36f6 (#7843)
• Additional commits viewable in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)
  You can disable automated security fix PRs for this repo from the Security Alerts page.

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

OpenSSF Scorecard

Package	Version	Score	Details
gomod/go.opentelemetry.io/auto/sdk	1.2.1	🟢 8.1	Details Check Score Reason Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Code-Review ⚠️ -1 Found no human activity in the last 30 changesets Dependency-Update-Tool 🟢 10 update tool detected Binary-Artifacts 🟢 10 no binaries found in the repo Maintained 🟢 10 30 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10 Token-Permissions 🟢 10 GitHub workflow tokens follow principle of least privilege Pinned-Dependencies 🟢 9 dependency not pinned by hash detected -- score normalized to 9 CII-Best-Practices ⚠️ 0 no effort to earn an OpenSSF best practices badge detected License 🟢 10 license file detected Fuzzing ⚠️ 0 project is not fuzzed Packaging 🟢 10 packaging workflow detected Vulnerabilities 🟢 10 0 existing vulnerabilities detected SAST ⚠️ 0 SAST tool is not run on all commits -- score normalized to 0 Branch-Protection 🟢 5 branch protection is not maximal on development and all release branches Signed-Releases ⚠️ -1 no releases found Security-Policy 🟢 10 security policy file detected CI-Tests 🟢 10 30 out of 30 merged PRs checked by a CI test -- score normalized to 10 Contributors 🟢 10 project has 16 contributing companies or organizations
gomod/go.opentelemetry.io/otel	1.40.0	🟢 9.2	Details Check Score Reason Code-Review 🟢 10 all changesets reviewed Maintained 🟢 10 30 commit(s) and 18 issue activity found in the last 90 days -- score normalized to 10 Packaging ⚠️ -1 packaging workflow not detected Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Dependency-Update-Tool 🟢 10 update tool detected Token-Permissions 🟢 10 GitHub workflow tokens follow principle of least privilege Binary-Artifacts 🟢 10 no binaries found in the repo License 🟢 10 license file detected Pinned-Dependencies 🟢 10 all dependencies are pinned CII-Best-Practices 🟢 5 badge detected: Passing SAST 🟢 9 SAST tool detected but not run on all commits Signed-Releases 🟢 8 5 out of the last 5 releases have a total of 5 signed artifacts. Vulnerabilities 🟢 9 1 existing vulnerabilities detected Branch-Protection 🟢 5 branch protection is not maximal on development and all release branches Fuzzing 🟢 10 project is fuzzed Security-Policy 🟢 10 security policy file detected CI-Tests 🟢 10 30 out of 30 merged PRs checked by a CI test -- score normalized to 10 Contributors 🟢 10 project has 38 contributing companies or organizations
gomod/go.opentelemetry.io/otel/metric	1.40.0	🟢 9.2	Details Check Score Reason Code-Review 🟢 10 all changesets reviewed Maintained 🟢 10 30 commit(s) and 18 issue activity found in the last 90 days -- score normalized to 10 Packaging ⚠️ -1 packaging workflow not detected Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Dependency-Update-Tool 🟢 10 update tool detected Token-Permissions 🟢 10 GitHub workflow tokens follow principle of least privilege Binary-Artifacts 🟢 10 no binaries found in the repo License 🟢 10 license file detected Pinned-Dependencies 🟢 10 all dependencies are pinned CII-Best-Practices 🟢 5 badge detected: Passing SAST 🟢 9 SAST tool detected but not run on all commits Signed-Releases 🟢 8 5 out of the last 5 releases have a total of 5 signed artifacts. Vulnerabilities 🟢 9 1 existing vulnerabilities detected Branch-Protection 🟢 5 branch protection is not maximal on development and all release branches Fuzzing 🟢 10 project is fuzzed Security-Policy 🟢 10 security policy file detected CI-Tests 🟢 10 30 out of 30 merged PRs checked by a CI test -- score normalized to 10 Contributors 🟢 10 project has 38 contributing companies or organizations
gomod/go.opentelemetry.io/otel/sdk	1.40.0	🟢 9.2	Details Check Score Reason Code-Review 🟢 10 all changesets reviewed Maintained 🟢 10 30 commit(s) and 18 issue activity found in the last 90 days -- score normalized to 10 Packaging ⚠️ -1 packaging workflow not detected Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Dependency-Update-Tool 🟢 10 update tool detected Token-Permissions 🟢 10 GitHub workflow tokens follow principle of least privilege Binary-Artifacts 🟢 10 no binaries found in the repo License 🟢 10 license file detected Pinned-Dependencies 🟢 10 all dependencies are pinned CII-Best-Practices 🟢 5 badge detected: Passing SAST 🟢 9 SAST tool detected but not run on all commits Signed-Releases 🟢 8 5 out of the last 5 releases have a total of 5 signed artifacts. Vulnerabilities 🟢 9 1 existing vulnerabilities detected Branch-Protection 🟢 5 branch protection is not maximal on development and all release branches Fuzzing 🟢 10 project is fuzzed Security-Policy 🟢 10 security policy file detected CI-Tests 🟢 10 30 out of 30 merged PRs checked by a CI test -- score normalized to 10 Contributors 🟢 10 project has 38 contributing companies or organizations
gomod/go.opentelemetry.io/otel/sdk/metric	1.40.0	🟢 9.2	Details Check Score Reason Code-Review 🟢 10 all changesets reviewed Maintained 🟢 10 30 commit(s) and 18 issue activity found in the last 90 days -- score normalized to 10 Packaging ⚠️ -1 packaging workflow not detected Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Dependency-Update-Tool 🟢 10 update tool detected Token-Permissions 🟢 10 GitHub workflow tokens follow principle of least privilege Binary-Artifacts 🟢 10 no binaries found in the repo License 🟢 10 license file detected Pinned-Dependencies 🟢 10 all dependencies are pinned CII-Best-Practices 🟢 5 badge detected: Passing SAST 🟢 9 SAST tool detected but not run on all commits Signed-Releases 🟢 8 5 out of the last 5 releases have a total of 5 signed artifacts. Vulnerabilities 🟢 9 1 existing vulnerabilities detected Branch-Protection 🟢 5 branch protection is not maximal on development and all release branches Fuzzing 🟢 10 project is fuzzed Security-Policy 🟢 10 security policy file detected CI-Tests 🟢 10 30 out of 30 merged PRs checked by a CI test -- score normalized to 10 Contributors 🟢 10 project has 38 contributing companies or organizations
gomod/go.opentelemetry.io/otel/trace	1.40.0	🟢 9.2	Details Check Score Reason Code-Review 🟢 10 all changesets reviewed Maintained 🟢 10 30 commit(s) and 18 issue activity found in the last 90 days -- score normalized to 10 Packaging ⚠️ -1 packaging workflow not detected Dangerous-Workflow 🟢 10 no dangerous workflow patterns detected Dependency-Update-Tool 🟢 10 update tool detected Token-Permissions 🟢 10 GitHub workflow tokens follow principle of least privilege Binary-Artifacts 🟢 10 no binaries found in the repo License 🟢 10 license file detected Pinned-Dependencies 🟢 10 all dependencies are pinned CII-Best-Practices 🟢 5 badge detected: Passing SAST 🟢 9 SAST tool detected but not run on all commits Signed-Releases 🟢 8 5 out of the last 5 releases have a total of 5 signed artifacts. Vulnerabilities 🟢 9 1 existing vulnerabilities detected Branch-Protection 🟢 5 branch protection is not maximal on development and all release branches Fuzzing 🟢 10 project is fuzzed Security-Policy 🟢 10 security policy file detected CI-Tests 🟢 10 30 out of 30 merged PRs checked by a CI test -- score normalized to 10 Contributors 🟢 10 project has 38 contributing companies or organizations
gomod/golang.org/x/sys	0.40.0	Unknown	Unknown

Scanned Files

• go.mod

[octo-sts]

Dependency matches pattern found in auto-merge config, merging