wp-admin/includes/class-wp-site-health-auto-updates.php:170Checks if automatic updates have tried to run, but failed, previously.
array|false public function test_if_failed_update() { $failed = get_site_option( 'auto_core_update_failed' ); if ( ! $failed ) { return false; } if ( ! empty( $failed['critical'] ) ) { $description = __( 'A previous automatic background update ended with a critical failure, so updates are now disabled.' ); $description .= ' ' . __( 'You would have received an email because of this.' ); $description .= ' ' . __( "When you've been able to update using the \"Update now\" button on Dashboard > Updates, this error will be cleared for future update attempts." ); $description .= ' ' . sprintf( /* translators: %s: Code of error shown. */ __( 'The error code was %s.' ), '<code>' . $failed['error_code'] . '</code>' ); return array( 'description' => $description, 'severity' => 'warning', ); } $description = __( 'A previous automatic background update could not occur.' ); if ( empty( $failed['retry'] ) ) { $description .= ' ' . __( 'You would have received an email because of this.' ); } $description .= ' ' . __( 'Another attempt will be made with the next release.' ); $description .= ' ' . sprintf( /* translators: %s: Code of error shown. */ __( 'The error code was %s.' ), '<code>' . $failed['error_code'] . '</code>' ); return array( 'description' => $description, 'severity' => 'warning', ); }Introduced in 5.2.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/class-wp-site-health-auto-updates.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.