Apple updated Pages on Wednesday with the ability to publish your books directly to Apple Books (the renamed iBooks). The move could (likely) means that iBooks Author is a dead-app walking, though it does include ebook design features not yet found in Pages.
Patch Notes for Pages 7.3 for Mac and Pages 4.3 for iOS
- Publish your books directly to Apple Books for download or purchase.
- Performance and stability improvements
Both versions are available in their respective App Stores now.