New Website with SSL. Do I need 301 Redirect in htaccess?

[nqservices]

Hi,

My current website url is: http://www.example.com and I will release a completely new website that will use a SSL Certificate and because it's a full new website all the url's will be new and different from the "old" website.

My hosting company support told me to use the following lines on my .htaccess file:

----
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R,L]
----

But when researching for this on google, I have found many websites telling that we should always use a 301 redirect and to do that the .htaccess file should be:

----
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L]
----

So in order to resume, it's the same domain, but now with a SSL Certificate and a full new website. In this case do I need to use the 301 redirect on my .htaccess file?

Thanks