It’s rolling out as we speak, but not sure just when it will hit just your phone. I couldn’t wait myself and found the apk of it.
The starting page of it looks pretty much as it did before, but when you go to an app in it: now things aren’t what they used to be I can tell you. Totally redesigned in the Material Design spirit, it looks clean and simple.
It’s a bit more scrolling but I think that it’s totally worth it. Clean and direct. You see at a glance what you want to see and there’s more if you just scroll a bit.
Oh, I got it from HERE. In case you want to download and install.