do_mu_upgrade WordPress Filter Hook
The do_mu_upgrade hook is triggered when a user upgrades their WordPress site from one version to another. This hook allows you to perform any necessary actions for upgrading your site.
apply_filters( 'do_mu_upgrade', bool $do_mu_upgrade ) #
Filters whether to attempt to perform the multisite DB upgrade routine.
Description
In single site, the user would be redirected to wp-admin/upgrade.php. In multisite, the DB upgrade routine is automatically fired, but only when this filter returns true.
If the network is 50 sites or less, it will run every time. Otherwise, it will throttle itself to reduce load.
Parameters
- $do_mu_upgrade
(bool)Whether to perform the Multisite upgrade routine. Default true.
Source
File: wp-admin/admin.php
Changelog
| Version | Description |
|---|---|
| MU (3.0.0) | Introduced. |