I am developing some custom pages for a WordPress site; to do this I created a child theme. The host (WPEngine) (at our request) set up a staging site.
I am now close to wanting to move the stuff I did (including the child theme) back to the "live" site.
Since it's been over a month since this has been happening, I'm guessing the live site has been updated.
How can I move the custom pages (I think I know how to do that), the custom database tables & the child theme without ANY impact on the live site?