1Backup your current template version changes
If you are using an older version of the template and want to upgrade to the latest version available for preview in the demo, before upgrading you must backup the changes you made to the template: backup any custom code changes you might have applied to any of the template's files (ideally, any custom css changes should have only been placed inside the template's custom.css file)
2Upgrade to the latest version of the template
After the backup is made, make sure to follow these steps:
- download the template again from MY ACCOUNT/MY DOWNLOADS or from the email with the download link
- install the latest version of the template using Joomla!'s default procedure
- reapply any custom code changes (if you only used the template's custom.css file, this is an easy step because you will only need to copy your old file over the current one)