setup multisite in wp5

i already have muiltisite (v4) running on server, but wanted to test out V5.

wp-settings.php

/**
* Used to set up and fix common variables and include
* the WordPress procedural and class library.
*
* Allows for some configuration in wp-config.php (see default-constants.php)

// Initialize multisite if enabled.
if ( is_multisite() ) {
require( ABSPATH . WPINC . '/class-wp-site-query.php' );
require( ABSPATH . WPINC . '/class-wp-network-query.php' );
require( ABSPATH . WPINC . '/ms-blogs.php' );
require( ABSPATH . WPINC . '/ms-settings.php' );
} elseif ( ! defined( 'MULTISITE' ) ) {
define( 'MULTISITE', false );
}
So question is, does setting up multisite change in WP V5?

Do just set this to ‘true’? or do you still need to edit wp-config.php and .htaccess files?

thanks