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Deprecate OpenTracing compatibility requirements #4938

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Merged
carlosalberto merged 7 commits into from
Mar 19, 2026
Merged

Deprecate OpenTracing compatibility requirements #4938

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4326cf4
Deprecate OpenTracing compatibility requirements
adp2201 Mar 11, 2026
a2b1a12
Clarify OpenTracing deprecation and earliest removal dates
adp2201 Mar 12, 2026
3a245fb
chore: rerun CI for markdown-link-check
adp2201 Mar 16, 2026
d92c7de
Merge branch 'main' into codex/deprecate-opentracing-spec-4849
adp2201 Mar 16, 2026
56b5d68
Merge branch 'main' into codex/deprecate-opentracing-spec-4849
adp2201 Mar 17, 2026
f43bcf1
Merge branch 'main' into codex/deprecate-opentracing-spec-4849
adp2201 Mar 18, 2026
d2da5eb
Merge branch 'main' into codex/deprecate-opentracing-spec-4849
carlosalberto Mar 19, 2026
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2 changes: 2 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -45,6 +45,8 @@ release.

### Compatibility

- Deprecate OpenTracing compatibility requirements in the specification.
([#4849](https://github.com/open-telemetry/opentelemetry-specification/issues/4849))
- Stabilize Prometheus Classic Histogram to OTLP Explicit Histogram transformation.
([#4874](https://github.com/open-telemetry/opentelemetry-specification/pull/4874))
- Clarify Prometheus Native Histogram to OTLP Exponential Histogram conversion,
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19 changes: 16 additions & 3 deletions specification/compatibility/opentracing.md
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Expand Up @@ -4,7 +4,17 @@ linkTitle: OpenTracing

# OpenTracing Compatibility

**Status**: [Stable](../document-status.md).
**Status**: [Deprecated](../document-status.md)

> [!NOTE]
> OpenTracing compatibility requirements are deprecated.
> Existing OpenTracing shims MAY continue to be supported for backwards
> compatibility, but implementing new OpenTracing compatibility is not required
> by this specification.
>
> OpenTracing compatibility requirements are deprecated as of March 2026.
> OpenTracing compatibility requirements in this specification will be removed
> no earlier than March 2027.

<details>
<summary>Table of Contents</summary>
Expand Down Expand Up @@ -51,8 +61,9 @@ More specifically, the intention is to allow OpenTracing instrumentation to be
recorded using OpenTelemetry. This Shim Layer MUST NOT publicly expose any
upstream OpenTelemetry API.

This functionality MUST be defined in its own OpenTracing Shim Layer, not in the
OpenTracing nor the OpenTelemetry API or SDK.
Historically, this functionality was defined in its own OpenTracing Shim Layer,
not in the OpenTracing nor the OpenTelemetry API or SDK. Since this
compatibility is deprecated, new implementations are not required.

Semantic convention mapping SHOULD NOT be performed, with the
exception of error mapping, as described in the [Set Tag](#set-tag) and
Expand All @@ -69,6 +80,8 @@ is not recommended for the following scenarios:
semantics and may lead to incorrect `Context` usage and incorrect traces.
See [Implicit and Explicit support mismatch](#implicit-and-explicit-support-mismatch).

This section remains for migration and backwards compatibility guidance.

## Language version support

Users are encouraged to check and update their language and runtime
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