Lightroom 4 is Here
If you’ve played with the public beta version then you should be all set to hit the ground running with the final release.
LR4
Migrating Your Lightroom Catalog and Photos to a New Computer
There comes giddy a time in every Lightroom user’s life when you will purchase a new computer. I’ve broken out the components you need to consider to get from old to new with a minimum amount of angst and a maximum amount of control.
Replacing the Lightroom Preference File
Also known as trashing the prefs, this is the act of forcing Lightroom to create a clean preference file in the hopes that it fixes whatever strange Lightroom problem you might be having.
Tutorial: Moving Folders and Photos in Lightroom
Creating new folders and moving photos from folder to folder is a fundamental aspect of file management. It is also a fundamental task that should only be performed from within Lightroom in order to maintain the connection between the Lightroom catalog and the imported photos.