CHANGELOG.md in opentelemetry-api-0.5.1 vs CHANGELOG.md in opentelemetry-api-0.6.0

@@ -1,13 +1,26 @@
 # Release History: opentelemetry-api
+
+### v0.6.0 / 2020-09-10
+
+* ADDED: Add support for OTEL_LOG_LEVEL env var
+* Documented array valued attributes [#343](https://github.com/open-telemetry/opentelemetry-ruby/pull/343)
+* Renamed CorrelationContext to Baggage [#338](https://github.com/open-telemetry/opentelemetry-ruby/pull/338)
+* Renamed Text* to TextMap* (propagators) [#335](https://github.com/open-telemetry/opentelemetry-ruby/pull/335)
+* Fixed exception semantic conventions (`span.record_error` -> `span.record_exception`) [#333](https://github.com/open-telemetry/opentelemetry-ruby/pull/333)
+* Removed support for lazy event creation [#329](https://github.com/open-telemetry/opentelemetry-ruby/pull/329)
+  * `name:` named parameter to `span.add_event` becomes first positional argument
+  * `Event` class removed from API
+* Added `hex_trace_id` and `hex_span_id` helpers to `SpanContext` [#332](https://github.com/open-telemetry/opentelemetry-ruby/pull/332)
+* Added `CorrelationContext::Manager.values` method to return correlations as a `Hash` [#323](https://github.com/open-telemetry/opentelemetry-ruby/pull/323)