diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1f8ed814ee0..2b2a32cc296 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,11 +4,28 @@
 
 ## Unreleased
 
+### New features
+
+- **AWSCognito**
+  - add UIAdaptivePresentationControllerDelegate to handle user swipe down to dismiss the SafariViewController
+
+- **AWSS3TransferUtility**
+  - added MD5 content verification for multi-part uploads
+
 ### Bug Fixes
 
 - **CognitoIdentity**
   - Don't overwrite AWSServiceConfiguration provided headers.
 
+- **AWS Mobile Client**
+  - make AWSMobileClientError message getter public
+
+- **AWS Mobile Client**
+  - add missing userSub property to SignUpResult
+
+- **AWSS3**
+  - set taskIdentifier attribute to nonatomic in transferutilitytask_private
+
 ### Misc. Updates
 
 - Model updates for the following services