Today Adobe released Lightroom version 2.5.
This update includes support for several new camera models like the Nikon D3000 and Olympus E-P1 as well as corrections for issues that were introduced in previous Lightroom 2 releases.
You can get the Windows version here, and the Mac version here.
If you are truly board (or an insomniac) you can peruse the Read Me file here.
