In June 2014, Apple announced that they would be ceasing future development and support of their Aperture software program. Many current users of Apple Aperture have started moving their libraries to Adobe Lightroom, so Adobe just produced a guide to help photographers who want to make the switch.
The guide, available for free, helps current Aperture users make the transition by defining terms, helping with folder exporting, and helping users understand what will/won’t transfer across. It is interesting to note that in the document Adobe states that they are creating a migration tool at some point in the future. The six page step-by-step guide takes readers through backing up their library, exporting images (originals and versions), and importing into Lightroom.