CHANGELOG.md in aws-sdk-dlm-1.55.0 vs CHANGELOG.md in aws-sdk-dlm-1.56.0

@@ -1,7 +1,12 @@
 Unreleased Changes
 ------------------
 
+1.56.0 (2023-04-07)
+------------------
+
+* Feature - Updated timestamp format for GetLifecyclePolicy API
+
 1.55.0 (2023-01-30)
 ------------------
 
 * Feature - Enabled FIPS endpoints for GovCloud (US) regions in SDK.