updating from 8.9.4 to 8.9.6

Hello,

I’ve had a couple of issues;
can’t change from non www to www – breaks the cart
voucher codes not working

So I’ve made the decision to switch themes (this is ST by the way).

I want to go from 8.9.4 to 8.9.6

I have created my site on a dummy domain and I’m happy with it running 8.9.6

However… I’m really worried about the updating. My concerns are mainly due to the users. I now have 40 users/ buyers who have all set up their accounts.

I worked out that I can’t migrate the users OUT of 8.9.4 , setup 8.9.6 and then import users – Or am I wrong there?

So can anyone give me a quick To-Do list to get this up?

I figure I’ll need to install 8.9.6 and then build from scratch, is that right?
As long as I don’t delete content/ users then can I simply remove 8.9.4 and then activate 8.9.6?
Will the users remain across all themes?

Any ideas on how better to do this?

It’s a big problem for me as all I really want to do is to switch to http://www.WebSite.co.uk but this just doesn’t work at the moment so any ideas on this would actually save me having to go through all of the work above.

Thanks for any help on this.

Regards.

Simon