diff --git a/CHANGELOG.md b/CHANGELOG.md
index d4d07202..96b5ccf5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,6 +23,11 @@ Dropping a requirement of a major version of a dependency is a new contract.
 ## [Unreleased]
 [Unreleased]: https://github.com/atlassian/aws-infrastructure/compare/release-3.1.1...master
 
+### Added
+- Add `DataCenterFormula.Builder.jiraSharedStorageConfig` function to configure DC tests to store attachments/avatars in an S3 bucket.
+- Add `JiraSharedStorageConfig`.
+- Update AWSCli to support V2 and use V2.9.12 by default.
+
 ## [3.1.2] - 2023-09-13
 [3.1.2]: https://github.com/atlassian/aws-infrastructure/compare/release-3.1.1...release-3.1.2