August 30, 2021, File Storage Security—All-in-one stacks and storage stacks can now be deployed with ObjectFilterPrefix to only invoke BucketListenerLambda on
               objects with a given prefix.
This feature binds the `s3:ObjectCreated:*` event only on the given prefix.
Previously, if the `s3:ObjectCreated:*` event of the scanning bucket was partially
               in use,
you could only deploy the stacks by setting the TriggerWithObjectCreatedEvent option
               to false.
Now with ObjectFilterPrefix, you can deploy the stack on a prefix that hasn't been
               used.
This feature also helps you to limit the scans on a certain bucket prefix.
For more information, see s3:ObjectCreated:* event in use.
 
		