diff --git a/sdk/core/core-http/CHANGELOG.md b/sdk/core/core-http/CHANGELOG.md
index b0602c0a0a9a..4af768b481ea 100644
--- a/sdk/core/core-http/CHANGELOG.md
+++ b/sdk/core/core-http/CHANGELOG.md
@@ -6,6 +6,8 @@
 
 ### Breaking Changes
 
+- Updated @azure/core-tracing to version `1.0.0-preview.12`. See [@azure/core-tracing CHANGELOG](https://github.com/Azure/azure-sdk-for-js/blob/main/sdk/core/core-tracing/CHANGELOG.md) for details about breaking changes with tracing.
+
 ### Key Bugs Fixed
 
 ### Fixed
diff --git a/sdk/core/core-tracing/CHANGELOG.md b/sdk/core/core-tracing/CHANGELOG.md
index d6aac66e465c..a309dea716be 100644
--- a/sdk/core/core-tracing/CHANGELOG.md
+++ b/sdk/core/core-tracing/CHANGELOG.md
@@ -7,6 +7,8 @@
 ### Breaking Changes
 
 - Removed `OpenCensusSpanWrapper` and `OpenCensusTracerWrapper` from the public API. Customers using these wrappers should migrate to using `OpenTelemetry` directly. [PR #15770](https://github.com/Azure/azure-sdk-for-js/pull/15770)
+- Update `@azure/core-tracing` to version 1.0.0-preview.12. This brings core-tracing up to date with `@opentelemetry/api@1.0.0`.
+  - `Span#context` was renamed to `Span#spanContext`. This change is supported in `@azure/core-http@1.2.7`.
 
 ## 1.0.0-preview.11 (2021-03-30)