New Feature: We've added over 20 fresh new email template designs and enhanced existing templates for viewing on mobile devices
New Feature: Our reworked subscribe form editor lets you easily add subscribe forms to Facebook, embed your form on your own website, and customize the color scheme.
New Feature: Instantly see what your message looks like on mobile by sending previews live to your iPhone (requires Stamps for iPhone 1.1)
New Feature: Receive notifications on your iPhone when your campaign has finished sending (requires Stamps for iPhone 1.1)
New in Mountain Lion: Share your email campaign via Twitter, Email, Messages, and more!
New in Mountain Lion: Notification Center now alerts you when your campaign has finished sending or when a design test completes
New Feature: Enjoy dramatic performance improvements, especially when working with large projects
New Feature: Added printing support for the History > Message, Recipients, Bounces, Spam Complaints, and Unsubscribes tabs
User interface enhancements
Added ability to import stationery from Apple Mail
History reports and design tests now recognize Outlook 2013, Outlook.com, and Android 4 email clients
Message editor now correctly imports document background color from RTF and RTFD documents
Improved font rendering on devices with limited font selection; improved general font handling
Composite images can now be zoomed in to a maximum zoom factor of 5x (up from 2x)
The image editor popover now respects file modification dates when choosing a previously chosen image
The Preview window now displays correct image dimensions and "alt" text for composite images when image loading is turned off
This History > Summary tab now shows the day of the week the mailing was sent
Added a "View in Web Browser" button to the History > Message tab
Added .asia, .tel., and .xxx as valid email TLDs
Added page numbers to all printouts
Restored missing images from the History > Summary printout
Added ability to change the background color of simple HTML messages
When importing a local HTML file, linked local stylesheets are moved to inline <style> elements
History reports now recognize the Sparrow email client
Choosing an image from the image editor now copies the image into the document package
Fixed a bug that could cause crashes or hangs when importing Direct Mail 2 documents
Fixed a bug that was causing certain CSS selectors to be treated as mail-merge tags
Incorrect or unrecognized mail-merge tags will now be shown in the final merged message, instead of silently discarded
…and much more!