chore(deps): bump go.opentelemetry.io/otel/sdk from 1.40.0 to 1.43.0

[dependabot]

Bumps go.opentelemetry.io/otel/sdk from 1.40.0 to 1.43.0.

Changelog

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

[1.43.0/0.65.0/0.19.0] 2026-04-02

Added

• Add IsRandom and WithRandom on TraceFlags, and IsRandom on SpanContext in go.opentelemetry.io/otel/trace for W3C Trace Context Level 2 Random Trace ID Flag support. (#8012)
• Add service detection with WithService in go.opentelemetry.io/otel/sdk/resource. (#7642)
• Add DefaultWithContext and EnvironmentWithContext in go.opentelemetry.io/otel/sdk/resource to support plumbing context.Context through default and environment detectors. (#8051)
• Support attributes with empty value (attribute.EMPTY) in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc. (#8038)
• Support attributes with empty value (attribute.EMPTY) in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc. (#8038)
• Support attributes with empty value (attribute.EMPTY) in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc. (#8038)
• Support attributes with empty value (attribute.EMPTY) in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp. (#8038)
• Support attributes with empty value (attribute.EMPTY) in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp. (#8038)
• Support attributes with empty value (attribute.EMPTY) in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp. (#8038)
• Support attributes with empty value (attribute.EMPTY) in go.opentelemetry.io/otel/sdk/metric/metricdata/metricdatatest. (#8038)
• Add support for per-series start time tracking for cumulative metrics in go.opentelemetry.io/otel/sdk/metric. Set OTEL_GO_X_PER_SERIES_START_TIMESTAMPS=true to enable. (#8060)
• Add WithCardinalityLimitSelector for metric reader for configuring cardinality limits specific to the instrument kind. (#7855)

Changed

• Introduce the EMPTY Type in go.opentelemetry.io/otel/attribute to reflect that an empty value is now a valid value, with INVALID remaining as a deprecated alias of EMPTY. (#8038)
• Improve slice handling in go.opentelemetry.io/otel/attribute to optimize short slice values with fixed-size fast paths. (#8039)
• Improve performance of span metric recording in go.opentelemetry.io/otel/sdk/trace by returning early if self-observability is not enabled. (#8067)
• Improve formatting of metric data diffs in go.opentelemetry.io/otel/sdk/metric/metricdata/metricdatatest. (#8073)

Deprecated

• Deprecate INVALID in go.opentelemetry.io/otel/attribute. Use EMPTY instead. (#8038)

Fixed

• Return spec-compliant TraceIdRatioBased description. This is a breaking behavioral change, but it is necessary to make the implementation spec-compliant. (#8027)
• Fix a race condition in go.opentelemetry.io/otel/sdk/metric where the lastvalue aggregation could collect the value 0 even when no zero-value measurements were recorded. (#8056)
• Limit HTTP response body to 4 MiB in go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp to mitigate excessive memory usage caused by a misconfigured or malicious server. Responses exceeding the limit are treated as non-retryable errors. (#8108)
• Limit HTTP response body to 4 MiB in go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp to mitigate excessive memory usage caused by a misconfigured or malicious server. Responses exceeding the limit are treated as non-retryable errors. (#8108)
• Limit HTTP response body to 4 MiB in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp to mitigate excessive memory usage caused by a misconfigured or malicious server. Responses exceeding the limit are treated as non-retryable errors. (#8108)
• WithHostID detector in go.opentelemetry.io/otel/sdk/resource to use full path for kenv command on BSD. (#8113)
• Fix missing request.GetBody in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp to correctly handle HTTP2 GOAWAY frame. (#8096)

[1.42.0/0.64.0/0.18.0/0.0.16] 2026-03-06

Added

• Add go.opentelemetry.io/otel/semconv/v1.40.0 package. The package contains semantic conventions from the v1.40.0 version of the OpenTelemetry Semantic Conventions. See the migration documentation for information on how to upgrade from go.opentelemetry.io/otel/semconv/v1.39.0. (#7985)

... (truncated)

Commits

• 9276201 Release v1.43.0 / v0.65.0 / v0.19.0 (#8128)
• 61b8c94 chore(deps): update module github.com/mattn/go-runewidth to v0.0.22 (#8131)
• 97a086e chore(deps): update github.com/golangci/dupl digest to c99c5cf (#8122)
• 5e363de limit response body size for OTLP HTTP exporters (#8108)
• 35214b6 Use an absolute path when calling bsd kenv (#8113)
• 290024c fix(deps): update module google.golang.org/grpc to v1.80.0 (#8121)
• e70658e fix: support getBody in otelploghttp (#8096)
• 4afe468 fix(deps): update googleapis to 9d38bb4 (#8117)
• b9ca729 chore(deps): update module github.com/go-git/go-git/v5 to v5.17.2 (#8115)
• 69472ec chore(deps): update fossas/fossa-action action to v1.9.0 (#8118)
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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 36.19%. Comparing base (b3e2af5) to head (0c42108).
⚠️ Report is 22 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1612      +/-   ##
==========================================
+ Coverage   35.48%   36.19%   +0.71%     
==========================================
  Files         168      168              
  Lines       14484    14534      +50     
==========================================
+ Hits         5139     5260     +121     
+ Misses       9006     8930      -76     
- Partials      339      344       +5     

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