Towards the bottom, look for the latest date. The numbers in the end of each file represent what the low frequency is for that file.
The path I provided is for updates. Or just use the Franco app.
Tapatalk sent from the GneX
I haven't ran into any issues with Superuser for this ROM.
With that said, SuperSU is better IMO.
For some reason TWRP app just doesn't function 100% with Superuser, ever since I started using SuperSu all the functionality s of the app just started working. Plus the SuperUser was never able to update it's binaries on my phone so I just gave up on it.