CHANGELOG.md in aws-sdk-ec2-1.439.0 vs CHANGELOG.md in aws-sdk-ec2-1.440.0

@@ -1,7 +1,12 @@
 Unreleased Changes
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+1.440.0 (2024-03-01)
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+
+* Feature - With this release, Amazon EC2 Auto Scaling groups, EC2 Fleet, and Spot Fleet improve the default price protection behavior of attribute-based instance type selection of Spot Instances, to consistently select from a wide range of instance types.
+
 1.439.0 (2024-02-28)
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 * Feature - This release increases the range of MaxResults for GetNetworkInsightsAccessScopeAnalysisFindings to 1,000.