CHANGELOG.md in aws-sdk-guardduty-1.63.0 vs CHANGELOG.md in aws-sdk-guardduty-1.64.0

@@ -1,7 +1,12 @@
 Unreleased Changes
 ------------------
 
+1.64.0 (2023-02-23)
+------------------
+
+* Feature - Updated API and data types descriptions for CreateFilter, UpdateFilter, and TriggerDetails.
+
 1.63.0 (2023-01-18)
 ------------------
 
 * Feature - Code Generated Changes, see `./build_tools` or `aws-sdk-core`'s CHANGELOG.md for details.