iCloud Drive allows users to store all of their individual files from OS X and iOS in addition to data from applications on Apple's cloud storage service, with the feature syncing all files across every Mac. The files stored on iCloud Drive are even available on a user's iOS devices, as the feature also contains support for Windows through the iCloud client.
Meanwhile, Apple's new Mail Drop feature bypasses traditional email attachment size limits allows users to send attachments up to 5GB through iCloud. The system is seamless for Mail users, while users on other platforms will receive a links via email to allow them to download the files.
iCloud Drive and Mail Drop will ship as a part of OS X Yosemite, which will be available this fall for free. Apple will now offer the first 5GB of iCloud storage for free, with 20GB and 200GB costing $0.99 per month and $3.99 per month, respectively. Tiers of up to 1TB are also available.