Hi,
Can anyone brief me about the latest panda 4.2 update and its impact on websites?

I have read that Google has slowly rolled out the panda 4.2 updates, which impact website rankings who has low quality and spammy content. You can get more information on moose blog about a google algorithm update and in very useful search engine land website. These sites will give you detailed information with examples.

You can read SearchEngineLand, SERoundTable, ... umm, there are others, but those are my favorites for the latest news. What, specifically, do you want to be briefed about? There have been soooo many incarnations of the Panda algorithm up until this point. What makes this one different is that it's a suuuuuper slow rollout (many, many months to complete), which is unique. A lot of Panda-affected still aren't even sure if they've been able to get out of it or not yet.

Hi,
Like Dani said you can check out with Search engine land About Google Panda 4.2 update like as i did- Check out the following topic in Search Engine Land website - "Google Panda 4.2 FAQs: We Interviewed Google On The Latest Panda Update"
I 'm sure you will get an idea.

Google Search has officially announced that the search engine giant will roll out a vital Algorithm Update on June 3rd, and it is rolling slowly as compared to other algorithms. Here is some blog to follow for the latest updates.
https://searchengineland.com/google-panda-4-2-is-here-slowly-rolling-out-after-waiting-almost-10-months-225850
https://searchengineland.com/library/google/google-panda-update
https://moz.com/google-algorithm-change

It’s official. A new update is rolling out very slowly, but definitely. Panda 4.2 is here. Google has stated that they were updating the Panda algorithm but that it could take a few months to be completely finished. Indeed, even on a site by site basis, it can take a long time for your pages to be completely catched. However, this update is a site-wide algorithm and not a page-by-page one. So maybe you will not even notice any changes before a few months.

The last update was on the 25th of September with Panda 4.1 even if some changes also occurred around October 2014.
Just a few webmasters noticed that change since Google said that only 2% or 3% of English queries were affected.