Adobe has launched a significant update to Lightroom. Version 6.4/CC 2015.4 significantly improves performance with editing updates being applied much more quickly and 1:1 previews being preemptively built. There have been improvements to the Panorama Merge function (in CC version only) and the user can select the location that Lightroom Mobile images are stored in. There are also significant new camera and lens support (though not for Nikon D5/D500 yet) and numerous bug fixes.

Lightroom 6/CC2015.4 is available via the update mechanism in the apps or download the zip files here for Windows and here for Mac. Links will download updates direct to your machine.