CHANGELOG.md in aws-sdk-ec2-1.256.0 vs CHANGELOG.md in aws-sdk-ec2-1.257.0

@@ -1,7 +1,12 @@
 Unreleased Changes
 ------------------
 
+1.257.0 (2021-08-20)
+------------------
+
+* Feature - encryptionInTransitSupported added to DescribeInstanceTypes API
+
 1.256.0 (2021-08-19)
 ------------------
 
 * Feature - The ImportImage API now supports the ability to create AMIs with AWS-managed licenses for Microsoft SQL Server for both Windows and Linux.
 
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