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Downloading the latest update (on Mac) for iWork and the notes say that it "adds support for iWork for iOS 1.7 apps."
On the support page,
Pages 4.3, Numbers 2.3, and Keynote 5.3 are updated to support iWork for iOS 1.7 apps.
iWork on iOS is at version 1.7. This update adds support to the desktop applications for those apps.