I just finished reading The Peripheral by William Gibson. With only two weeks left in 2014, it is definitely a top contender for my Book of the Year.
A return to far future science fiction for Gibson, it is a murder mystery with a time travel element to it. Gibson also keeps the future tech coming, all of it feeling possible and probable.
This is another book that is very easy to drop spoilers for, so I do not want to say anything more about it other than that I highly recommend it.