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Deprecate OT Trace propagator #4851

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Merged
lmolkova merged 4 commits into from
Jan 26, 2026
Merged

Deprecate OT Trace propagator #4851

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b7ae731
Deprecate OT Trace propagator
Kielek Jan 23, 2026
e5ae19c
CHANGELOG
Kielek Jan 23, 2026
47acf0d
There is no OT propagator in .NET SDK/contrib repo
Kielek Jan 23, 2026
acfd2ed
Merge branch 'main' into deprecate-ot-propagator
reyang Jan 26, 2026
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2 changes: 2 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -11,6 +11,8 @@ release.

- Deprecate Jaeger propagator and make propagator implementation optional.
([#4827](https://github.com/open-telemetry/opentelemetry-specification/pull/4827))
- Deprecate OT Trace propagator and make propagator implementation optional.
([#4851](https://github.com/open-telemetry/opentelemetry-specification/pull/4851))

### Traces

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2 changes: 1 addition & 1 deletion spec-compliance-matrix.md
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Expand Up @@ -241,7 +241,7 @@ Disclaimer: this list of features is still a work in progress, please refer to t
| TraceContext Propagator | | + | + | + | + | + | + | + | + | + | + | + |
| B3 Propagator | | + | + | + | + | + | + | + | + | + | + | + |
| Jaeger Propagator | X | + | + | + | + | + | + | + | + | + | - | + |
| OT Propagator | | + | + | + | + | | | | | | | |
| OT Propagator | X | + | + | + | + | | | | | | - | |
| OpenCensus Binary Propagator | | + | | | | | | | | | | |
| [TextMapPropagator](specification/context/api-propagators.md#textmap-propagator) | | + | + | | + | + | | + | | + | | |
| Fields | | + | + | + | + | + | + | + | + | + | + | + |
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2 changes: 1 addition & 1 deletion spec-compliance-matrix/dotnet.yaml
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Expand Up @@ -426,7 +426,7 @@ sections:
- name: Jaeger Propagator
status: '-'
- name: OT Propagator
status: '?'
status: '-'
- name: OpenCensus Binary Propagator
status: '?'
- name: '[TextMapPropagator](specification/context/api-propagators.md#textmap-propagator)'
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1 change: 1 addition & 0 deletions spec-compliance-matrix/template.yaml
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Expand Up @@ -277,6 +277,7 @@ sections:
- name: Jaeger Propagator
optional: true
- name: OT Propagator
optional: true
- name: OpenCensus Binary Propagator
- name: '[TextMapPropagator](specification/context/api-propagators.md#textmap-propagator)'
- name: Fields
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2 changes: 1 addition & 1 deletion specification/configuration/sdk-environment-variables.md
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Expand Up @@ -127,7 +127,7 @@ Known values for `OTEL_PROPAGATORS` are:
- `"b3multi"`: [B3 Multi](../context/api-propagators.md#configuration)
- `"jaeger"`: [Jaeger](https://www.jaegertracing.io/sdk-migration/#propagation-format) - **Status**: [Deprecated](../document-status.md)
- `"xray"`: [AWS X-Ray](https://docs.aws.amazon.com/xray/latest/devguide/xray-concepts.html#xray-concepts-tracingheader) (_third party_)
- `"ottrace"`: [OT Trace](https://github.com/opentracing?q=basic&type=&language=) (_third party_)
- `"ottrace"`: [OT Trace](https://github.com/opentracing?q=basic&type=&language=) (_third party_) - **Status**: [Deprecated](../document-status.md)
- `"none"`: No automatically configured propagator.

Known values for `OTEL_TRACES_SAMPLER` are:
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2 changes: 2 additions & 0 deletions specification/context/api-propagators.md
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Expand Up @@ -367,6 +367,8 @@ as OpenTelemetry extension packages:
* [OT Trace](https://github.com/opentracing?q=basic&type=&language=). Propagation format
used by the OpenTracing Basic Tracers. It MUST NOT use `OpenTracing` in the resulting
propagator name as it is not widely adopted format in the OpenTracing ecosystem.
**Status**: [Deprecated](../document-status.md), use the
[W3C TraceContext](https://www.w3.org/TR/trace-context/) instead.
* [OpenCensus BinaryFormat](https://github.com/census-instrumentation/opencensus-specs/blob/master/encodings/BinaryEncoding.md#trace-context).
Propagation format used by OpenCensus, which describes how to format the span context
into the binary format, and does not prescribe a key. It is commonly used with
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