Release 1.20.0 (#3364)

April release.

Author: carlosalberto

CHANGELOG.md

@@ -11,6 +11,32 @@ release.
 
 ### Traces
 
+### Metrics
+
+### Logs
+
+### Resource
+
+### Semantic Conventions
+
+### Compatibility
+
+### OpenTelemetry Protocol
+
+### SDK Configuration
+
+### Telemetry Schemas
+
+### Common
+
+## v1.20.0 (2023-04-07)
+
+### Context
+
+- No changes.
+
+### Traces
+
 - Clarify required parent information in ReadableSpan. Technically a relaxation,
   but previously it was easy to overlook certain properties were required.
   [#3257](https://github.com/open-telemetry/opentelemetry-specification/pull/3257)
@@ -23,8 +49,6 @@ release.
   ([#3306](https://github.com/open-telemetry/opentelemetry-specification/pull/3306))
 - 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
-  ([#3258](https://github.com/open-telemetry/opentelemetry-specification/pull/3258))
 
 ### Logs
 
@@ -43,6 +67,8 @@ release.
 
 ### Resource
 
+- No changes.
+
 ### Semantic Conventions
 
 - Clarify that attribute requirement levels apply to the instrumentation library
@@ -67,6 +93,12 @@ release.
 - Stabilize key components of `service.*` and `telemetry.sdk.*` resource
   semantic conventions.
   ([#3202](https://github.com/open-telemetry/opentelemetry-specification/pull/3202))
+- Fixed attributes requirement level in semantic conventions for hardware metrics
+  ([#3258](https://github.com/open-telemetry/opentelemetry-specification/pull/3258))
+- Added AWS S3 semantic conventions.
+  ([#3251](https://github.com/open-telemetry/opentelemetry-specification/pull/3251))
+- Fix units in the Kafka metric semantic conventions.
+  ([#3300](https://github.com/open-telemetry/opentelemetry-specification/pull/3300))
 - Add Trino to Database specific conventions
   ([#3347](https://github.com/open-telemetry/opentelemetry-specification/pull/3347))
 - Change `db.statement` to only be collected if there is sanitization.
@@ -79,14 +111,25 @@ release.
 
 ### Compatibility
 
+- No changes.
+
 ### OpenTelemetry Protocol
 
+- Declare OTLP stable.
+  ([#3274](https://github.com/open-telemetry/opentelemetry-specification/pull/3274))
+
 ### SDK Configuration
 
+- No changes.
+
 ### Telemetry Schemas
 
+- No changes.
+
 ### Common
 
+- No changes.
+
 ## v1.19.0 (2023-03-06)
 
 ### Context