diff --git a/src/OpenTelemetry/CHANGELOG.md b/src/OpenTelemetry/CHANGELOG.md
index 93cc1b8d320..30856d74dfc 100644
--- a/src/OpenTelemetry/CHANGELOG.md
+++ b/src/OpenTelemetry/CHANGELOG.md
@@ -6,6 +6,11 @@
   `8.0.0-rc.2.23479.6`.
   ([#4959](https://github.com/open-telemetry/opentelemetry-dotnet/pull/4959))
 
+* The `AddService` `ResourceBuilder` extension method will now generate the same
+  `service.instance.id` for the lifetime of a process when
+  `autoGenerateServiceInstanceId` is `true`.
+  ([#4988](https://github.com/open-telemetry/opentelemetry-dotnet/pull/4988))
+
 ## 1.7.0-alpha.1
 
 Released 2023-Oct-16