Hi @Jaycee_Lewis We have fileMd5 property which is returning in Files API. So I think if we replace file with another file this property value is changing and by comparing this value we can know that if file is replaced or not. Let me know your thought on this.
Hey, @DA8 
Please let us know how this works for you. I think our community will benefit from what you learn from your experiments.
Talk soon! — Jaycee
Hi @Jaycee_Lewis We have fileMd5 property which is returning in Files API.
So i’m saving that value in my database along with files.. If we replace file with another file, this fileMd5 value is changing and by comparing this value with my existing Database value we can know that if file is replaced or not.
Hope this helps. Thanks