CHANGELOG.md in opentelemetry-api-0.16.0 vs CHANGELOG.md in opentelemetry-api-0.17.0

- old
+ new
@@ -1,6 +1,23 @@
 # Release History: opentelemetry-api
 
+### 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.
+* BREAKING CHANGE: Remove metrics API.
+
+  `OpenTelemetry::Metrics` and all of its behavior removed until spec stabilizes.
+* BREAKING CHANGE: Extract instrumentation base from api (#698).
+
+  To take advantage of a base instrumentation class to create your own auto-instrumentation, require and use the `opentelemetry-instrumentation-base` gem.
+
+* ADDED: Default noop tracer for instrumentation 
+* FIXED: Refactor propagators to add #fields 
+* FIXED: Remove metrics API 
+* FIXED: Dynamically upgrade global tracer provider 
+
 ### v0.16.0 / 2021-03-17
 
 * ADDED: Span#add_attributes 
 * FIXED: Handle rack env getter edge cases 
 * DOCS: Replace Gitter with GitHub Discussions 