The chipset in this mobo includes parts made by Intel, ASMedia, and Realtek - any new drivers/firmwares/technologies available for these parts will always be found first on their respective corporate sites.
Drivers, firmware/BIOS updates, and softwares made by Asus/ROG are only available through Asus, of course. I've have seen a few instances of these things appear in random threads on these forums, on rare occassion, but I haven't found anything of the sort which applies to the RVE.
The downloads available on the official Asus RVE product page is about as "up to date" as you can get. It seems that people are anticipating a new BIOS for this mobo sometime "soon" (unless I'm mistaken).
I've learned that you can often find Asus software appropriate for your particular OS on the support pages for other Asus mobos. ROG software seems to run on any mobo which integrates the proprietary ROG chip, regardless which mobo it was (or was not) "officially" released for.
Which specific "outdated" driver/software are you asking about?
"All opinions are not equal. Some are a very great deal more robust, sophisticated and well supported in logic and argument than others." - Douglas Adams
[/Korth]