Had to browse to <a href="https://www.google.com/favicon.ico" rel="nofollow">https://www.google.com/favicon.ico</a> to actually see it on Google's homepage since I'm using Google over https. I tried hard refresh and it didn't change until I browsed to the https version of the new favicon.
Looks pretty similar to the 2008 version: <a href="http://googleblog.blogspot.com/2008/06/one-fish-two-fish-red-fish-blue-fish.html" rel="nofollow">http://googleblog.blogspot.com/2008/06/one-fish-two-fish-red...</a>
<a href="https://www.google.com/images/google_favicon_128.png" rel="nofollow">https://www.google.com/images/google_favicon_128.png</a> (found in the source on the homepage)
is it me or this (and it's not the only thing in recent Google design tweaks/refreshes) is quite "[formerly-known-as] Metro" ? Flatter, less colors, more minimal... (not complaining, just wondering)