Can I have one 7.0 site, and another 7.1 site, on my same account?

I have two existing 7.0 Squarespace sites.

I want to create a new site in 7.1.

My question:
Can I maintain sites in both versions of Squarespace under my one Squarespace login/account?

Or   -   is it like software, where you have to “upgrade the software” from 7.0 to 7.1 – making it an either/or choice?

Thanks so much!

On 5/16/2021 at 3:21 AM, paul2009 said:

If you have a commerce site and you want to stay on the same version of Squarespace, it may be better to preview another template and make your changes whilst in this preview mode. This will allow you to rebrand without affecting the live site.

An alternative option is to duplicate the site and rebrand the copy. However, if you duplicate the site, the duplicate will not contain your backend data, for example commerce order history, customer accounts and analytics information.

When you are ready to go live, you’ll need to:

• start a new subscription plan for the new site, and cancel the old subscription. 
• move your domain(s) by disconnecting it from the old site and connecting it to the new one. When you cancel your old site, you will lose any data that you don’t export.
• reconnect all third-party services like payment providers, social media accounts, Zapier automations, mailing lists and so on (if you use them)

Thank you! However, I think my question is different. Let me see if I can rephrase to express it better.

I don't want to change either of my two existing 7.0 sites; I'd like to leave them exactly as is.
I'd just like to build a third, new site - in 7.1.
It appears the response above has to do with changing a site from 7.0 to 7.1.

So I'm wondering  - in Squarespace, do ALL of the sites under one's login have to be either all 7.0, or all 7.1?
Or, can there be a mix of 7.0 and 7.1 sites under your one login?
Thanks so much!!

1 hour ago, NoelM said:

can there be a mix of 7.0 and 7.1 sites under your one login?

Yes. 
I’m not sure where you found my quote above, but it doesn’t relate to this thread. You can create sites on both versions, using the same account.