With the background changes applied to all three apps, Pages, Numbers and Keynote, the software reached version 2.2.1.
It is unknown what "stability improvements and bug fixes" the updates bring, though it can be speculated that the relatively quick turnaround since Apple's last iWork refresh suggests the fixes may patch complications with the Heartbleed OpenSSL vulnerability. The company revamped iOS, Mac and iCloud versions of iWork in early April.
For new devices, the latest iWork versions can be downloaded for free from the iOS App Store. Apple's Pages is a 276MB download, Numbers weighs in at 239MB and Keynote comes to 456MB.