I have a full single license for LR 5.7 but no creative cloud. Do I need to get into CC membership to get LR 6 ? very confusing.
Go to any www.adobe.com page and scroll down then click on the Products link at the footer of the page:
Click the Buy link next to LR6 in the list of products, select Upgrade and select LR5 as your previous product:
Retrieving data ...