This version is primarily intended to provide compatibility with Mac OSX 10.8 and address a few select issues. This update is free for all current license holders of Express 3.x.
• Download Version 3.4.3.
• Release Notes.
This update can also be downloaded via the menu Nisus Writer Express > Check For Updates. If you purchased Nisus Writer Express through the Mac App Store, the update will be available there as soon as it clears Apple's submission process.