ownCloud does not have a feature for automatic or for initiating the installation of new version releases. Moving to a new release can be achieved by installing a new updated Amahi package or installing the new ownCloud release manually. Reinstalling a new Amahi package is a safer practice than a manual install.
Like a lot software in the Open Source world when there is a new ownCloud version release, any Third Pary applications written by a "third party author" may not work as expected with a new release. It takes time for the third party authors to update their applications to work with the new release. Third Party Some third party applications will need to can be "restored" from backups or re-installed.Reinstalling from the ownCloud applications store successfully for a new Amahi package is a safer practiceversion release.