Word of warning, should you try to use this file to update, you will likely lose root, possibly without the chance to root once complete or even ODIN back to 4.x. This is primarily for devs to use to try to make pre-rooted and custom ROMs with.
The link to the file is below:
@muniz_ri, @RockRatt, @iB4STiD and @Joe-Tech, I believe you guys may be interested in this.
May the odds ever be in our favor.