There are two folders. How to find changed files and copy them to a third folder?

Question

Windows

Kodil - made changes to one of the projects. So, I made quick edits without a git and other things. There is an original folder, and there is with my changes. How to pull out all changed files? It is advisable to save the paths. So that the customer can simply merge this folder with some files with his folder and everything will be fine)

Answer 1

many of them https://en.wikipedia.org/wiki/Comparison_of_file_c...
First of the list:
There is an option to export only modified files.
By the way, winrar, or rather its console version, can do a lot of tricky things. Including file comparison, incremental backups and patches.

Answer 2

Python script with file comparison by SHA1 for example.