We still don't have support for toggling S3 bucket versioning, but we can at least support getting the latest versions of all objects. See https://docs.aws.amazon.com/AmazonS3/latest/API/RESTBucketGETVersion.html for more information about the API. Note that the returned format is distinct from both "GET Bucket (List Objects) Version 1" and "GET Bucket (List Objects) Version 2" APIs. Change-Id: Ic57c273a3d5d7cdc34ca3a03e35e99b202a0bb01