<p><?php esc_html_e('BackWPup is dropping support for WordPress versions less than 5.0. Please update WordPress to the latest version. Without an update, you will not receive any new features.', 'backwpup'); ?></p>
<p><?php echo wp_kses(
    __('<a href="https://backwpup.com/support/" target="_blank">Contact our support team here</a> if any questions remain.', 'backwpup'),
    ['a' => ['href' => true, 'target' => true]]
); ?></p>