It’s not a huge difference compared to what the help center looked before, but it’s definitely an improvement. Filters on the left have separated help for specific applications, help discussions, sheer Facebook basics and safety information from the rest of the help.
Furthermore, the new search interface displays related help pages and helps you find help in other languages (if there is no result in your language). Perhaps most importantly, specific topics now have unique URLs, which means you can easily share them with others.
While we’re on the subject of Facebook help centers, you can check out our recently released Facebook Guide Book, which explains some of the more complex Facebook-related tasks, with an emphasis on using Facebook for business and brands.