Want to know about upgrading from LR5 to LR6; procedure, cost (if any), and when will LR6 be available?
Lightroom 6 has been released and is now available to purchase and to download from Adobe. Here is the link:
Scroll down to Lightroom and click on Buy and choose to upgrade. The upgrade cost is $79. Lightroom 6 will not be installed over Lightroom 5. It will be installed in addition to your older program. When you first start Lightroom 6 it will prompt you to convert your Lightroom 5 catalog. You should do this. Lightroom 6 will create a new copy of your catalog, leaving Lightroom 5 intact so that you can still use it on your computer if you wish to.