Adobe has just announced Lightroom CC and Lightroom 6, the latest versions of its professional photo cataloguing and editing software. They're actually the same program, but Lightroom CC is the version that's integrated into Adobe's subscription-based Photography Plan, part of its Creative Cloud service, while Lightroom 6 is the 'perpetual licence' version which you pay for and use in the old-fashioned way.The advantage of Lightroom CC is that you get all the benefits of the Creative Cloud system, including online storage and display and the ability to synchronise collections with mobile devices like phones and tablets.