Upgrading from any Ossn version to latest one

• Make sure you have at minimum php 7.0 running.
• Back up your complete OSSN installation- and data directory.
• Back up your database.
• Download latest stable OSSN version from the download page of our website and unzip locally.
• Login to your admin account - don't log off.
• Disable Cache.
• Disable all non-core components. (= all components which don't start with Ossn....)
• Enable Default Theme.
• Remove old Ossn installation from your site, except the folder named configurations and your Ossn data directory.
• Upload all files and folders from locally unzipped installation package to former place on your server.
• Check ownership of copied files and folders on your server. They must be read- and writable by apache. In doubt ask your provider how to set permissions correctly.
• Back in your browser, run http://yourwebsite.com/upgrade/upgrade.php
• Remove subdirectory named installation

You must follow these steps to upgrade.