Adobe has released Lightroom 5. You can download a 30 day trial from Adobe. I worked with the Beta for at least a month and found it very robust and filled with useful tools. There are numerous new features in Lr 5 compared with earlier versions, so it is well worth trying it out.
Adobe has also released an updated Camera Raw for CS6 (Lightroom 5 Beta’s version of Camera Raw was actually newer than CS6 before this update – they’re probably both now the same).