CHANGELOG.md in aws-sdk-emr-1.65.0 vs CHANGELOG.md in aws-sdk-emr-1.66.0

@@ -1,7 +1,12 @@
 Unreleased Changes
 ------------------
 
+1.66.0 (2023-02-16)
+------------------
+
+* Feature - This release provides customers the ability to define a timeout period for procuring capacity during a resize operation for Instance Fleet clusters. Customers can specify this timeout using the ResizeSpecifications parameter supported by RunJobFlow, ModifyInstanceFleet and AddInstanceFleet APIs.
+
 1.65.0 (2023-01-18)
 ------------------
 
 * Feature - Code Generated Changes, see `./build_tools` or `aws-sdk-core`'s CHANGELOG.md for details.