Release 1.47.0 (#4584)

July 2025 release.

### Context

- Add Supplementary Guidelines for environment variables as context
carrier
  specification.

([#4548](#4548))

### Traces

- Define sampling threshold field in OpenTelemetry TraceState; define
the behavior
of TraceIdRatioBased sampler in terms of W3C Trace Context Level 2
randomness.

([#4166](#4166))
- Define CompositeSampler implementation and built-in ComposableSampler
interfaces.

([#4466](#4466))
- Define how SDK implements `Tracer.Enabled`.

([#4537](#4537))

### Logs

- Stabilize `Event Name` parameter of `Logger.Enabled`.

([#4534](#4534))
- Stabilize SDK and No-Op `Logger.Enabled`.

([#4536](#4536))
- `SeverityNumber=0` MAY be used to represent an unspecified value.

([#4535](#4535))

### Baggage

- Add Supplementary Guidelines for environment variables as context
carrier
  specification.

([#4548](#4548))

### Compatibility

- Clarify expectations about Prometheus content negotiation for metric
names.

([#4543](#4543))

---------

Co-authored-by: Armin Ruech <[email protected]>
Co-authored-by: Trask Stalnaker <[email protected]>

Author: 3 people

CHANGELOG.md

@@ -9,9 +9,33 @@ release.
 
 ### Context
 
-- Add Supplementary Guidelines for environment variables as context carrier
-  specification.
-  ([#4548](https://github.com/open-telemetry/opentelemetry-specification/pull/4548))
+### Traces
+
+### Metrics
+
+### Logs
+
+### Baggage
+
+### Profiles
+
+### Resource
+
+### Entities
+
+### OpenTelemetry Protocol
+
+### Compatibility
+
+### SDK Configuration
+
+### Common
+
+### Supplementary Guidelines
+
+### OTEPs
+
+## v1.47.0 (2025-07-18)
 
 ### Traces
 
@@ -23,8 +47,6 @@ release.
 - Define how SDK implements `Tracer.Enabled`.
   ([#4537](https://github.com/open-telemetry/opentelemetry-specification/pull/4537))
 
-### Metrics
-
 ### Logs
 
 - Stabilize `Event Name` parameter of `Logger.Enabled`.
@@ -34,32 +56,26 @@ release.
 - `SeverityNumber=0` MAY be used to represent an unspecified value.
   ([#4535](https://github.com/open-telemetry/opentelemetry-specification/pull/4535))
 
-### Baggage
+### Compatibility
+
+- Clarify expectations about Prometheus content negotiation for metric names.
+  ([#4543](https://github.com/open-telemetry/opentelemetry-specification/pull/4543))
+
+### Supplementary Guidelines
 
 - Add Supplementary Guidelines for environment variables as context carrier
   specification.
   ([#4548](https://github.com/open-telemetry/opentelemetry-specification/pull/4548))
 
-### Profiles
-
-### Resource
-
-### Entities
-
-### OpenTelemetry Protocol
-
-### Compatibility
-
-- Clarify expectations about Prometheus content negotiation for metric names.
-  ([#4543](https://github.com/open-telemetry/opentelemetry-specification/pull/4543))
+### OTEPs
 
-### SDK Configuration
+- Extend attributes to support complex values.
+  ([#4485](https://github.com/open-telemetry/opentelemetry-specification/pull/4485))
 
 ### Common
 
-### Supplementary Guidelines
-
-### OTEPs
+- Update spec to comply with OTEP-232.
+  ([#4529](https://github.com/open-telemetry/opentelemetry-specification/pull/4529))
 
 ## v1.46.0 (2025-06-12)