#6954 Bump go.opentelemetry.io/otel/sdk from 1.37.0 to 1.40.0 in /flytectl Pull request opened by dependabot[bot] 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

<http://go.opentelemetry.io/otel/sdk/trace|go.opentelemetry.io/otel/sdk/trace>

. (#7724)

• Add

Enabled

method to all synchronous instrument interfaces (

Float64Counter

,

Float64UpDownCounter

,

Float64Histogram

,

Float64Gauge

,

Int64Counter

,

Int64UpDownCounter

,

Int64Histogram

,

Int64Gauge

,) in

<http://go.opentelemetry.io/otel/metric|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

<http://go.opentelemetry.io/otel/semconv/v1.39.0|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

<http://go.opentelemetry.io/otel/semconv/v1.38.0|go.opentelemetry.io/otel/semconv/v1.38.0>.

(#7783, #7789)

Changed

• Improve the concurrent performance of

HistogramReservoir

in

<http://go.opentelemetry.io/otel/sdk/metric/exemplar|go.opentelemetry.io/otel/sdk/metric/exemplar>

by 4x. (#7443)

• Improve the concurrent performance of

FixedSizeReservoir

in

<http://go.opentelemetry.io/otel/sdk/metric/exemplar|go.opentelemetry.io/otel/sdk/metric/exemplar>

. (#7447)

• Improve performance of concurrent histogram measurements in

<http://go.opentelemetry.io/otel/sdk/metric|go.opentelemetry.io/otel/sdk/metric>

. (#7474)

• Improve performance of concurrent synchronous gauge measurements in

<http://go.opentelemetry.io/otel/sdk/metric|go.opentelemetry.io/otel/sdk/metric>

. (#7478)

• Add experimental observability metrics in

<http://go.opentelemetry.io/otel/exporters/stdout/stdoutmetric|go.opentelemetry.io/otel/exporters/stdout/stdoutmetric>

. (#7492)

•

Exporter

in

<http://go.opentelemetry.io/otel/exporters/prometheus|go.opentelemetry.io/otel/exporters/prometheus>

ignores metrics with the scope

<http://go.opentelemetry.io/contrib/bridges/prometheus|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

<http://go.opentelemetry.io/otel/sdk/metric|go.opentelemetry.io/otel/sdk/metric>

. (#7702)

• The

rpc.grpc.status_code

attribute in the experimental metrics emitted from

<http://go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc|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

<http://go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc|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

<http://go.opentelemetry.io/otel/sdk/log|go.opentelemetry.io/otel/sdk/log>

. (#7662)

• Fix

DroppedAttributes

on

Record

in

<http://go.opentelemetry.io/otel/sdk/log|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

<http://go.opentelemetry.io/otel/sdk/log|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

<http://go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp|go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp>

to correctly handle HTTP/2

GOAWAY

frame. (#7794)

•

WithHostID

detector in

<http://go.opentelemetry.io/otel/sdk/resource|go.opentelemetry.io/otel/sdk/resource>

to use full path for

ioreg

command on Darwin (macOS). (#7818)

Deprecated

• Deprecate

<http://go.opentelemetry.io/otel/exporters/zipkin|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

<http://go.opentelemetry.io/otel/sdk/metric|go.opentelemetry.io/otel/sdk/metric>

using hashing for map keys. (#7175)

• Add

WithInstrumentationAttributeSet

option to

<http://go.opentelemetry.io/otel/log|go.opentelemetry.io/otel/log>

,

<http://go.opentelemetry.io/otel/metric|go.opentelemetry.io/otel/metric>

, and

<http://go.opentelemetry.io/otel/trace|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

<http://go.opentelemetry.io/otel/exporters/prometheus|go.opentelemetry.io/otel/exporters/prometheus>

. Check the

<http://go.opentelemetry.io/otel/exporters/prometheus/internal/x|go.opentelemetry.io/otel/exporters/prometheus/internal/x>

package documentation for more information. (#7345)

• Add experimental observability metrics in

<http://go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc|go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc>

. (#7353)

• Add temporality selector functions

DeltaTemporalitySelector

,

CumulativeTemporalitySelector

,

LowMemoryTemporalitySelector

to `<http://go.opentelemetry.io/otel/sdk/metric|go.opentele…

flyteorg/flyte