The project was cancelled in early 2000 and later merged with Neptune to create Windows XP.
[2] Development of Odyssey began alongside the consumer-based Neptune in 1999 and was based on the Windows 2000 codebase.
[2] Features planned for Odyssey were the new Activity Centers as well as a new user interface.
[3] Due to high hardware requirements and because Odyssey and Neptune would be based on the same codebase anyway, Microsoft combined them to form codename Whistler, for efficiency.
[2] No builds or versions of Odyssey were ever leaked or released by Microsoft as the product never left the planning stage.