Need some good suggestions. Preferably the latest books. Thanks.

i'm not a big sci-fi person, but i recently picked up on kurt vonnegut. cat's cradle and breakfast of champions are a must read, dawg.
as for newer novels, i'm not sure.

Well, of all the books of this genre that I have ever read (not many), I would recommend:

• Wool
  
• Dust
  
• The Stand
  
• On the Beach

Cat’s Cradle is too good! Holy shit! ♥

From my earlier years of reading a lot of Sci-Fi, my personal favorites were:

Isaac Asimov's Foundation - Series with a huge scope, spanning literally millennia. All the main characters are important historical figures for the universe depicted in the book. Immensely interesting because of how well fleshed out the politics of the world are. Not much of the futuristic technology is explained, most of the books are just dialogue, or thinking. Definitely really good.

Ender's Game series - Really popular, for good reason. I haven't read any of the books besides the ones in the main series, but they're fantastic. Most people know about Ender's Game, but Speaker For The Dead is a favorite among those who've read it. Xenocide and Children of the mind get really philosophical and bores some people, I still found them to be interesting, albeit for different reasons than the first and second books. Still definitely worth a read in my opinion.

If you want a really good apocalyptic book (novel in this case) i suggest you Metro 2033 and Metro Last Light. Best novels whereup the games with the same names were made.

There some really awesome series books of Stalker and Metro 2033. There are both in apocalyptic subjects. But it's hard to find them in english (сause they are both written in russian).

I remember reading a book back in middle school called the last boy alive or someting like that Sci-Fi Post, Apocalyptic, pretty good read if my memory serves me well.

Since you're asking for recent stuff I'm assuming you already got Dune out of the way, but I'll namedrop it just in case.

"Left Behind" is a great book, as I am told. It may not fit everyone though, because it's (sort of) religion-based.

As suggested before Enders Game is great I really enjoyed that and I know this sounds stupid but the Halo seiries are also good books