The iWork Mac apps have been updated to support collaboration via shared iCloud Drive folders, and other new features.
Pages, Numbers, and Keynote make up the iWork Suite of apps
Apple updated their Pages, Numbers, and Keynote apps on Mac to support a new iCloud Drive feature for sharing folders. When an iWork document is stored in a shared folder, they will now function as shared documents without any further action.
The feature comes on the heels of Apple releasing iOS 13.4 and macOS 10.15.4, which added the iCloud Drive folder sharing feature.
All documents within the shared iCloud Drive folder are accessible to any user added to the folder. With this new feature, documents from the iWork suite will not only be accessible by users, but editable too, with all the features of collaborated documents.
Apple's iCloud Drive shared folders was a long awaited feature that has shown up in multiple iOS betas before finally being released.
Other updates to the iWork apps include new templates, drop caps, document backgrounds, new shapes, and new export options. Numbers specifically gained increased maximum columns and rows.
Also mentioned in the release notes is a new ability to edit shared documents offline, then populating the document when returning online.
You can find the updated iWork apps in the Mac App Store. So far, the iOS apps have yet to be updated.