Apple has released a set of updates to its iWork apps for iOS devices, adding improved compatibility with iWork for OS X and Microsoft Office documents. Pages 1.7 adds the ability to use change tracking to collaborate on documents while Numbers 1.7 adds support for hiding and unhiding rows and columns and importing and exporting Numbers for Mac spreadsheets with filters. Keynote 1.7 improves import and export for Microsoft Powerpoint and Keynote for Mac presentations with support for expanded slide sizes as well as well as presentation themes, master slides and preset styles; users can also now play back all Keynote action builds including move, rotate, scale and opacity.