Decent article about the option of moving from Aperture to LR 6 or CC. For those that are frequently in areas where the there no internet access, consider the CC photography plan (LR + PS) on the annual plan. That software only checks the subscription validity every 99 days. The monthly plan checks every 30 days. And of course if go for LR 6, no checking once you have it downloaded and installed.
http://9to5mac.com/2015/05/09/review-adobe-lightroom-cc-6/#more-378794
http://9to5mac.com/2015/05/09/review-adobe-lightroom-cc-6/#more-378794