CHANGELOG.md in aws-sdk-signer-1.53.0 vs CHANGELOG.md in aws-sdk-signer-1.55.0

@@ -1,7 +1,17 @@
 Unreleased Changes
 ------------------
 
+1.55.0 (2024-06-05)
+------------------
+
+* Feature - Code Generated Changes, see `./build_tools` or `aws-sdk-core`'s CHANGELOG.md for details.
+
+1.54.0 (2024-05-13)
+------------------
+
+* Feature - Code Generated Changes, see `./build_tools` or `aws-sdk-core`'s CHANGELOG.md for details.
+
 1.53.0 (2024-04-30)
 ------------------
 
 * Feature - Documentation updates for AWS Signer. Adds cross-account signing constraint and definitions for cross-account actions.