The following was posted on the DropDMG blog:

Version 3.4.5 of DropDMG is now available. This is a free update for owners of DropDMG 3.0 that includes the following enhancements:

  • Worked around a bug in macOS 10.12.2 that caused a garbage character to be displayed in various pop-up menus.
  • DropDMG no longer posts to Notification Center for operations that complete less than a minute after being queued. This should help make sure that the banners/alerts that you do see are genuinely useful.
  • Made some changes to reduce the time it takes to open the Preferences window.
  • Logging is more robust on macOS 10.12.
  • Updated the German localization.

DropDMG 3.4.5 works with Mac OS X 10.6.8 through macOS 10.12. Older versions are available for older operating systems. For information about previous releases of DropDMG, please see the version history.