IMPORTANT: Don't forget the backup! It is the most important step in updating your website. If something goes wrong, you can always start over with a backup.
The Joomla website itself has all the manuals available for updating a particular Joomla version to the latest version of Joomla. Depending on which Joomla version you currently have active, a correct manual is available. You may need to do several updates before the latest version of Joomla is active.
If you need to do multiple updates, backup your website for each version.
Click to check how to update Joomla extensions.
Click to check how to upgrade your Joomla installation.
Metaregistrar does not offer substantive support for third-party software packages. The use of external software is at your own risk.
Always consult Joomla.org documentation. Joomla Support or the Joomla Community.