• The first offers an expanded list of useful related searches
• The second is the addition of longer search result descriptions

Both are designed to better guide users  to the information they need.

Here is a snippet:
“Starting today, we’re deploying a new technology that can better understand associations  and concepts related to your search, and one of its first applications lets us offer  you even more useful related searches (the terms found at the bottom, and sometimes at the top, of the search results page).”

Full article for SEO enhancements

What does it mean?

This feature will now be better able to identify related terms using  your  targeted keyphrase giving you a better chance of being seen.

Call Idea Design Websites and Marketing (813-917-2116) if we can  provide services to help you utilize these new changes.