CHANGELOG.md in aws-sdk-ec2-1.403.0 vs CHANGELOG.md in aws-sdk-ec2-1.404.0

@@ -1,7 +1,12 @@
 Unreleased Changes
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+1.404.0 (2023-09-06)
+------------------
+
+* Feature - This release adds 'outpost' location type to the DescribeInstanceTypeOfferings API, allowing customers that have been allowlisted for outpost to query their offerings in the API.
+
 1.403.0 (2023-09-05)
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 * Feature - Introducing Amazon EC2 C7gd, M7gd, and R7gd Instances with up to 3.8 TB of local NVMe-based SSD block-level storage. These instances are powered by AWS Graviton3 processors, delivering up to 25% better performance over Graviton2-based instances.