diff --git a/CHANGELOG_PENDING.md b/CHANGELOG_PENDING.md
index 8a1927a39ca..32bd50933e5 100644
--- a/CHANGELOG_PENDING.md
+++ b/CHANGELOG_PENDING.md
@@ -1,5 +1,7 @@
 ### SDK Features
 
 ### SDK Enhancements
+* `service/s3`:  Use interfaces assertions instead of ValuesAtPath for S3 field lookups. [#1401](https://github.com/aws/aws-sdk-go/pull/1401)
+  * Improves the performance across the board for all S3 API calls by removing the usage of `ValuesAtPath` being used for every S3 API call.
 
 ### SDK Bugs