File: wp-admin/includes/class-wp-site-health-auto-updates.php

Checks if automatic updates are disabled.

Checks if we can access files without providing credentials.

Checks if core files are writable by the web user/group.

Checks if the install is using a development branch and can use nightly packages.

Checks if the site supports automatic minor updates.

Checks if automatic updates are disabled by a filter.

Checks if automatic updates have tried to run, but failed, previously.

Checks if WordPress is controlled by a VCS (Git, Subversion etc).

WP_Site_Health_Auto_Updates constructor.

Runs tests to determine if auto-updates can run.

Tests if auto-updates related constants are set correctly.

Checks if updates are intercepted by a filter.