Hello. I have a legacy website that I am trying to get operational again. This is simply for demo purposes, so I am not interested in upgrading to the latest version of WordPress. I have already tried this, and it breaks the custom theme I wrote for the site. I do not have the time to re-write the theme.
What I would like to do is disable the version check in the admin panel. Is there a way to do this, or am I on my own? Thanks.