Update changelog

Author: DylanRussell

CHANGELOG.md

@@ -11,10 +11,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - typecheck: add sdk/resources and drop mypy
   ([#4578](https://github.com/open-telemetry/opentelemetry-python/pull/4578))
-- Update OTLP gRPC/HTTP exporters: the export timeout is now inclusive of all retries and backoffs,
-  and an unnecessary 32 second sleep that occurred after all retries had completed/failed was removed.
-  Update gRPC OTLP Exporters to use official gRPC retry policy config. The `RetryInfo` proto in the error
-  response will now be ignored, and server's should now use the gRPC supported header `grpc-retry-pushback-ms`.
+- Update OTLP gRPC/HTTP exporters: the export timeout is now inclusive of all retries and backoffs.
+  A +/-20% jitter was added to all backoffs. A pointless 32 second sleep that occurred after all retries
+  had completed/failed was removed.
   ([#4564](https://github.com/open-telemetry/opentelemetry-python/pull/4564)).
 - Use PEP702 for marking deprecations
   ([#4522](https://github.com/open-telemetry/opentelemetry-python/pull/4522))