Backfill changelog (#5811)

Author: zoewangg

.changes/2.30.2.json

@@ -37,6 +37,12 @@
             "category": "AWS SDK for Java v2",
             "contributor": "",
             "description": "Updated endpoint and partition metadata."
+        },
+        {
+            "type": "bugfix",
+            "category": "Amazon Simple Storage Service",
+            "contributor": "",
+            "description": "Fixed contentLength mismatch issue thrown from putObject when multipartEnabled is true and a contentLength is provided in PutObjectRequest. See [#5807](https://github.com/aws/aws-sdk-java-v2/issues/5807)"
         }
     ]
 }

CHANGELOG.md

@@ -24,6 +24,10 @@
   - ### Features
     - Correction of docs for "Added support for ml.trn1.32xlarge instance type in Reserved Capacity Offering"
 
+## __Amazon Simple Storage Service__
+- ### Bugfixes
+    - Fixed contentLength mismatch issue thrown from putObject when multipartEnabled is true and a contentLength is provided in PutObjectRequest. See [#5807](https://github.com/aws/aws-sdk-java-v2/issues/5807)
+
 # __2.30.1__ __2025-01-16__
 ## __AWS SDK for Java v2__
   - ### Features