CHANGELOG.md in opentelemetry-api-0.17.0 vs CHANGELOG.md in opentelemetry-api-1.0.0.rc1

- old
+ new

@@ -1,6 +1,12 @@
 # Release History: opentelemetry-api
 
+### v1.0.0.rc1 / 2021-05-21
+
+* BREAKING CHANGE: Remove optional parent_context from in_span 
+
+* FIXED: Remove optional parent_context from in_span 
+
 ### v0.17.0 / 2021-04-22
 
 * BREAKING CHANGE: Replace TextMapInjector/TextMapExtractor pairs with a TextMapPropagator.
 
   [Check the propagator documentation](https://open-telemetry.github.io/opentelemetry-ruby/) for the new usage.