WordPress, themes and plugins are updated constantly: new features, compatibility with new PHP versions and, above all, security fixes.
What maintenance covers
- updating WordPress, the theme and the plugins, with testing after every update
- regular backups of the files and the database, kept off the server
- checking the forms, the orders and the important pages
- security monitoring and removing plugins that are no longer used
- periodic speed and database optimisation
Why updating “blindly” is a bad idea
An update can clash with the theme or with another plugin. That is why major updates are done after a backup, and the site is checked straight afterwards.
Maintenance costs far less than repairing a site that has been compromised.