[!NOTE] This release is binary compatible with 0.15.0.

[!WARNING] If you use opentelemetry-java 1.59.0, please use otel4s 0.15.1.

Key changes

Support for complex attributes

You can use AnyValue directly with Attribute, allowing nested and structured values:

import org.typelevel.otel4s.AnyValue
import org.typelevel.otel4s.Attribute

val anyValue: AnyValue = AnyValue.map(
  Map(
    "nested-string" -> AnyValue.string("string"), 
    "nested-long" -> AnyValue.long(123L)
  )
)

val attribute = Attribute("anyValueAttribute", anyValue)

This change is mandated by the OpenTelemetry specification.

Semantic Conventions 1.39.0

Semantic conventions are regenerated using version 1.39.0 of the OpenTelemetry semconv specification.

What's Changed

Core

• Support complex attributes by @iRevive in https://github.com/typelevel/otel4s/pull/1174

Semantic Conventions

• Update opentelemetry-semconv to 1.39.0 by @typelevel-steward[bot] in https://github.com/typelevel/otel4s/pull/1170

Documentation

• Added Dash0 example by @CodingFabian in https://github.com/typelevel/otel4s/pull/1166

Dependencies

• Update scalafmt-core to 3.10.5 by @typelevel-steward[bot] in https://github.com/typelevel/otel4s/pull/1169
• flake.lock: Update by @typelevel-steward[bot] in https://github.com/typelevel/otel4s/pull/1168
• Update scalafmt-core to 3.10.6 by @typelevel-steward[bot] in https://github.com/typelevel/otel4s/pull/1171

New Contributors

• @CodingFabian made their first contribution in https://github.com/typelevel/otel4s/pull/1166

Full Changelog: https://github.com/typelevel/otel4s/compare/v0.15.0...v0.15.1