No specific info about version 3.6. Please visit the main page of ToDo X on Mac Informer.
Todo with cloud sync redefines productivity on the Mac Desktop by bringing together features from Todo for iPhone, Todo for iPad, and Todo Online.
TodoTxtMac is a minimalist, keyboard-driven to-do manager for Mac OS X.
What ToDo is a nice task organizer that allows you to create to-do lists.
Simple ToDo is a very simple and nice task organizer.
It is a script that creates to-do items from Mail messages.