Google Penguin 2.0 is live now as just announced by Google Web Spam Engineer Matt Cutts. As we all know that first update was Penguin 1 on April 24, 2012 which impacted about 3.1% of queries, after that small updates came on May 26, 2012 (less than 0.1%) and October 5, 2012 (0.3% of queries).
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