Yahoo! Mail for iOS received an update that brings support for printing attachments via AirPrint on compatible printers. The update also includes improvements to the performance of the app as well as bug fixes.
The update is available now in the App Store.
What’s New in Version 1.5.3
● AirPrint: Easily print messages on your AirPrint-enabled printer, by selecting “Print” in the reply menu of a message, or via the share button in an attachment. For more information on AirPrint, you can review the Apple Support doc at http://support.apple.com/kb/ht4356 ● Performance improvements and bug fixes