Suppose I published an article covering "BEST SEO PRACTICE OF 2020", at that point in a month or something like that, I overhaul, include or update the article, which really is designated "Curating content" which is a very healthy approach. But if I keep the URL, and then change the entire content and the topic, then it would be not helping my SEO at all. Remember that the content should match your topic, title tag, and URL. You can not put some random content on a URL containing some other keyword!

What you can do is to REDIRECT OLD URL to the NEW one! which would still be a good idea!