Google Penguin 4.0, Penguin is now real-time and more granular.

Yesterday Google Announced on their official Webmaster Central Blog that after four year and five months of development and testing, they are now rolling out an update to the Penguin algorithm in all languages. With this update, Penguin's data is refreshed in real time, so changes will be visible much faster, typically taking effect shortly after googlebot re-crawl and re-index a page. The Penguin algorithm will be able to devalue spam by adjusting ranking based on spam signals, rather than affecting the ranking of the whole site.

Penguin is now part of Google’s core ranking algorithm, It is real-time and more granular.

Google Penguin 4.0 Real-time Update

Penguin Algorithm, The Real Time Update.
The Penguin Algorithm is aimed at decreasing search engine rankings of websites that violate Google's Webmaster Guidelines by using unethical SEO techniques involved in increasing artificially the ranking of a webpage by manipulating the number of links pointing to the page. Such tactics are commonly described as link schemes.

Penguin becomes more page-specific, not sitewide only.
As we know Penguin Algorithm was a sitewide penalty but Google’s last official statement saying that it's now page-specific. Google also said this new Penguin algorithm is “more granular.” From its post:
Penguin is now more granular. Penguin now devalues spam by adjusting ranking based on spam signals, rather than affecting ranking of the whole site.

Can your website be affected by Penguin 4.0?
If your website were affected by Penguin in the past and you don't see a recovery, then that probably means your website is still affected and you should go with Penguin Cleanups.

Soon we’ll be hearing from many SEOs, Website Owner and SEO Tools Developers success and failed stories of Penguin recovery, as they analyze the changes their sites have made. I'd give this a couple weeks to fully roll out and check my analytics to see if there are any changes.