site.update:after

/site/config/config.php

return [
    'hooks' => [
        'site.update:after' => function (Kirby\Cms\Site $newSite, Kirby\Cms\Site $oldSite) {
            // your code goes here
        }
    ]
]

Parameters

Parameter	Type
$newSite	Kirby\Cms\Site
$oldSite	Kirby\Cms\Site