CHANGELOG.md in aws-sdk-ec2-1.237.0 vs CHANGELOG.md in aws-sdk-ec2-1.238.0

@@ -1,7 +1,12 @@
 Unreleased Changes
 ------------------
 
+1.238.0 (2021-05-26)
+------------------
+
+* Feature - This release adds resource ids and tagging support for VPC security group rules.
+
 1.237.0 (2021-05-24)
 ------------------
 
 * Feature - This release adds support for creating and managing EC2 On-Demand Capacity Reservations on Outposts.
 
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