No specific info about version 12.3. Please visit the main page of Manager on Mac Informer.
HTC Sync Manager makes it easy to sync all of your media to and from your computer with your HTC phone.
Bookmark manager for Safari, Explorer, OmniWeb...
Companion application to Dive Log for iOS.
SPD-SX Wave manager is application software that runs on Mac OS X.
This is a replacement program for the WD Button Manager.