Once again Google has rolled out Panda update 4.0 to hammer those who are against Google webmaster guidelines.
On 20th May 2014 Matt Cutts tweeted Google is rolling out Panda 4.0
It is one of the major panda updates which will affect different languages in different %.
English – 7.5% organic search queries will be affected.
French – 3.5% organic search queries will be affected.