Release 1.21.0

CHANGELOG.md

@@ -13,8 +13,38 @@ release.
 
 ### Metrics
 
+### Logs
+
+### Resource
+
+### Semantic Conventions
+
+### Compatibility
+
+### OpenTelemetry Protocol
+
+### SDK Configuration
+
+### Telemetry Schemas
+
+### Common
+
+## v1.21.0 (2023-05-09)
+
+### Context
+
+- No changes.
+
+### Traces
+
+- No changes.
+
+### Metrics
+
 - Add experimental histogram advice API.
   ([#3216](https://github.com/open-telemetry/opentelemetry-specification/pull/3216))
+- Recommended non-prefixed units for metric instrument semantic conventions.
+  ([#3312](https://github.com/open-telemetry/opentelemetry-specification/pull/3312))
 - Specify second unit (`s`) and advice bucket boundaries of `[]`
   for `process.runtime.jvm.gc.duration`.
   ([#3458](https://github.com/open-telemetry/opentelemetry-specification/pull/3458))
@@ -25,17 +55,23 @@ release.
   ([#3345](https://github.com/open-telemetry/opentelemetry-specification/pull/3354))
 - Drop logger include_trace_context parameter.
   ([#3397](https://github.com/open-telemetry/opentelemetry-specification/pull/3397))
+- Clarify how ObservedTimestamp field is set if unspecified
+  ([#3385](https://github.com/open-telemetry/opentelemetry-specification/pull/3385))
 - Mark logs bridge API / SDK as stable.
   ([#3376](https://github.com/open-telemetry/opentelemetry-specification/pull/3376))
 - Mark LogRecord Environment Variables as stable.
   ([#3449](https://github.com/open-telemetry/opentelemetry-specification/pull/3449))
 
 ### Resource
 
+- No changes.
+
 ### Semantic Conventions
 
+- Semconv for hardware metrics, network metrics and attributes
+  ([#3344](https://github.com/open-telemetry/opentelemetry-specification/pull/3344))
 - Clarify the scope of the HTTP client span.
- ([#3290](https://github.com/open-telemetry/opentelemetry-specification/pull/3290))
+  ([#3290](https://github.com/open-telemetry/opentelemetry-specification/pull/3290))
 - Add moratorium on relying on schema transformations for telemetry stability
   ([#3380](https://github.com/open-telemetry/opentelemetry-specification/pull/3380))
 - Mark "Instrumentation Units" and "Instrumentation Types" sections of the general
@@ -46,15 +82,24 @@ release.
   ([#3393](https://github.com/open-telemetry/opentelemetry-specification/pull/3393))
 - Specify that seconds should be used for measuring durations.
   ([#3388](https://github.com/open-telemetry/opentelemetry-specification/pull/3388))
+- Add a note about not splitting UpDownCounter timeseries
+  ([#3367](https://github.com/open-telemetry/opentelemetry-specification/pull/3367))
+- Add k8s.cluster.uid semantic convention
+  ([#3267](https://github.com/open-telemetry/opentelemetry-specification/pull/3267))
 - Change http.server.duration and http.client.duration units to seconds
   ([#3390](https://github.com/open-telemetry/opentelemetry-specification/pull/3390))
 - BREAKING: Remove `messaging.consumer.id`, make `messaging.client_id` generic
   ([#3336](https://github.com/open-telemetry/opentelemetry-specification/pull/3336))
 
 ### Compatibility
 
+- Mark OpenCensus compatibility spec as stable
+  ([#3425](https://github.com/open-telemetry/opentelemetry-specification/pull/3425))
+
 ### OpenTelemetry Protocol
 
+- No changes.
+
 ### SDK Configuration
 
 - Lay initial groundwork for file configuration
@@ -67,6 +112,8 @@ release.
 
 ### Telemetry Schemas
 
+- No changes.
+
 ### Common
 
 - Add log entries to specification README.md contents.
@@ -90,8 +137,6 @@ release.
 
 - Clarify that units should use UCUM case sensitive variant.
   ([#3306](https://github.com/open-telemetry/opentelemetry-specification/pull/3306))
-- Recommended non-prefixed units for metric instrument semantic conventions.
-  ([#3312](https://github.com/open-telemetry/opentelemetry-specification/pull/3312))
 - Remove No-Op instrument and Meter creation requirements.
   ([#3322](https://github.com/open-telemetry/opentelemetry-specification/pull/3322))
 - Fixed attributes requirement level in semantic conventions for hardware metrics
@@ -118,8 +163,6 @@ release.
 
 ### Semantic Conventions
 
-- Add k8s.cluster.uid semantic convention
-  ([#3267](https://github.com/open-telemetry/opentelemetry-specification/pull/3267))
 - Clarify that attribute requirement levels apply to the instrumentation library
   ([#3289](https://github.com/open-telemetry/opentelemetry-specification/pull/3289))
 - Fix grammatical number of metric units.