No specific info about version 1.3. Please visit the main page of owncloud on Mac Informer.
The version refers to server software and not Mac client software which is v1.4.1
Synchronizes local contents with those you store on your MEGA cloud account.
Offers an extra security layer to the data stored on the cloud.
A client application for Jumpshare, a cloud storage service.
Upload, download, and manage Azure Storage blobs, files, queues, and tables.
Personal Lifetime Cloud brings the cloud closer to your desktop.
The version refers to server software and not Mac client software which is v1.4.1