Was There a November 14th Google Update?

On the morning of Friday, November 15th, we woke up to a substantial one-day temperature spike on MozCast. Digging in, there were no signs of a glitch, and it seemed to hit across multiple IPs. The 30-day history looks like this:

Webmaster chatter seemed normal and Google has not confirmed

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To read the full article: http://feedproxy.google.com/~r/seomoz/~3/GylVc_2TXrw/was-there-a-november-14th-google-update