I am looking at the codex page Giving Wordpress Its Own Directory. I currently have Wordpress in a sub folder, and want to get it to load at the site root, without moving the installation. I've done this once before, but it was a long time ago, and I need to get this right the first time.
The second section on the page, Using a pre-existing subdirectory install, gives the instructions I need. Here is my question:
Step 5 says "Edit your root directory's index.php." OK, I can do that, but what is going to happen the next time Wordpress is upgraded. Index.php is part of my Theme, not part of Wordpress, correct? So I should be OK. But what happens when the theme gets updated? Say my client, a year down the road, updates the theme, and the site disappears. Is this a possibility? I have never had this trouble with the site I did before, but I just want to make sure. Thank you!