How to update to next version

´╗┐´╗┐Follow System > Update

From The Left side first, you save to check if all statuses are complete. PHP.ini Configuration and Filesystem Permissions. Then take a backup of your files and database, and upload the file. your system will be updated.
Another way is, just upload the file in your c-panel domain root directory and extract the file then visit the admin dashboard, and you will find a new update popup. From Here you can also update the system.