Did this when Steam wanted to update and said something with being more compatible with AMD/ATI cards. I was like, "okay, why not?"
It was actually simple to use, and if it does allow you to update the day their released then great.
Doesn't tell me what they improved on since 10.8 though, I hope it brings up a window just saying the little improvements.
[Mhhhh, went to a site called hardforum to see them complain about AMD releasing new drivers and saying they'll quit using Steam even when it isn't doing auto updates.]