Page Comparison

Doing an update on a local or second system has the major advantage that your productive page is only offline for a few minutes and you can take as long as you want for the upgrade.

However, as an update can take a long time you must make sure that no new content is being added to the page once you have taken a backup of all files and the database. Otherwise, restoring the backup might delete changes made in the meantime.

To shorten the maintenance time of the page you could take another backup of database and files on the day, you are performing the upgrade of productive system. Take care, that you are doing all steps according to the guide, to prevent any mistakes.