CHANGELOG.md in aws-sdk-arczonalshift-1.8.0 vs CHANGELOG.md in aws-sdk-arczonalshift-1.9.0

@@ -1,7 +1,12 @@
 Unreleased Changes
 ------------------
 
+1.9.0 (2023-11-22)
+------------------
+
+* Feature - Code Generated Changes, see `./build_tools` or `aws-sdk-core`'s CHANGELOG.md for details.
+
 1.8.0 (2023-09-27)
 ------------------
 
 * Feature - Code Generated Changes, see `./build_tools` or `aws-sdk-core`'s CHANGELOG.md for details.