• Database cluster
• Fragment cache
• Amazon SNS

After enabling Enterprise mode you will find a area inside Database Cache box on the General Settings page. Click 'Enable database cluster' to enable the functionality.

• Adds support for grouping transients both per blog and site wide
• Adds support for manual flushing of registered transient groups
• Adds support for action based flushing of registered transient groups

To make the plugin aware that you group transients see code examples below:

add_action('w3tc_register_fragment_groups', 'my_plugin_register_groups');

function my_plugin_register_groups() {
	//blog specific group and an array of actions that will trigger a flush of the group
	w3tc_register_fragment_group('my_plugin_', array('publish_post'));
	//If using MultiSite Network/site wide specific group and an array of actions that will trigger a flush of the group
	w3tc_register_fragment_group_global('my_plugin_global_', array('edit_site'));
}
function my_plugin_flush_group() {
	//manually flush a blog specific group.
	w3tc_fragmentcache_flush_group('my_plugin_');
}
function my_plugin_flush_global_group() {
	//manually flush a network wide group
	w3tc_fragmentcache_flush_group('my_plugin_global_', true);
}

//Set transients
function on_some_event() {
    if (false === get_transient('my_plugin_some_key'))
        //my_plugin_ prefix is the group name we registered earlier
        set_transient('my_plugin_some_key', 'blog specific value');
    if (false === get_site_transient('my_plugin_some_key'))
        //my_plugin_site_ prefix is the group name we registered earlier
        set_site_transient('my_plugin_site_some_key', 'site wide specific value');
}