| Version of the Windows NT operating system | |
| Developer | Microsoft |
|---|---|
| Working state | Historic, never released |
| Marketing target | Business |
| Kernel type | Windows NT |
| License | Non-disclosure agreement[1] |
| Support status | |
| Cancelled | |
Odyssey (also known as NT6) was the codename for a version of Microsoft Windows that was intended to succeed Windows 2000. 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.[2][1] The version number of Odyssey is unknown, with some unverified sources claiming it as NT 6.0 or NT 5.5.[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.[3]
Confidential documents from the Comes vs. Microsoft case do state that Odyssey was indeed under development.[3]
