iCloud Documents and Data Discontinued
In May 2022, iCloud Documents and Data, our legacy document syncing service, will be discontinued and completely replaced by iCloud Drive. If you use iCloud Documents and Data, your account will be migrated to iCloud Drive after this date.
Via Sami Fathi:
iCloud Drive launched in 2014 as a unified, seamless way for Apple users to keep all their files, documents, and more synchronized across all their devices.
iCloud Drive was introduced with iOS 8 and OS X 10.10 Yosemite, which seems like a long time ago. However, if you have hardware that can’t update to those versions, this announcement means that syncing will stop working entirely. On Macs, at least, you can use iCloud Drive via the Web.
Previously:
Update (2021-05-18): Nick Heer:
Can Macs that run Mavericks or below access iCloud Drive via the web? I think there are some security standards that are no longer supported by Macs of around that vintage, which may be used by iCloud web.
I tested iCloud in the latest version of Safari for Mavericks, and the page doesn’t finish loading; it just shows a spinner. It’s possible that Chrome or Firefox would work better.