Windows 4000 (version)

Windows 4000 is a sequel to Windows 10, released in 32015.

Versions
Windows 4000 gets two feature updates every year. The Semi-Annual Channel (SAC) gets all these updates, while the Long-Time Servicing Channel (LTSC), meant for enterprise use cases, gets only one in every four. Windows 4000 gets feature updates twice every year, in March and September. Windows 4000 also has

Server versions
Windows 4000 has server counterparts. These come in both the SAC and LTSC branches. The SAC branch gets Core versions, which are headless, while the LTSC branch gets full versions, which have a GUI like most other OSes.