time to time google announce new updates, all web master will have to aware about latest update. now penguin 3.0 is going to come. we have to more focus on branding and pharses to maintain our website reputation.
Google will tell you exactly what they want you to do
Sign up for google webmaster tools
verify site ownership (instructions on the tools page)
submit sitemap (instructions on the tools page)
wait a few days for results, go to your google webmaster page and follow the instructions to improve your site.
The new update is Panda 4.0. In this, Google confirmed a major Panda update that likely included both an algorithm update and a data refresh. Officially, about 7.5% of English-language queries were affected.
Yes, the new update is sweeping the search engines for duplicate and syndicated contents. But there are some sites that reportedly benefited from this update, especially those who have quality content.