Google has rolled out an update to its Penguin algorithm, unveiling Penguin version 2.1. The announcement came directly from Matt Cutts, as he shared the news on Twitter:
Penguin 2.1 launching today. Affects ~1% of searches to a noticeable degree. More info on Penguin: http://t.co/4YSh4sfZQj — Matt Cutts (@mattcutts) October 4, 2013
The introduction of Google Penguin 2.1 hasn't noticeably affected the performance of my website or blog.