Is there a detailed changelog that lists all the official updates of update.rpf?
I hate rummaging through the file while trying to find what was updated so I can keep my modified files.
This is the closest thing that I could find. While it doesn't detail the specific changes to the update.rpf, one could easily deduce what has been changed with the list. http://www.allpatchnotes.com/patch-notes/gta-v-1-46-patch-notes-updated/
Why not just check the official website?