UnixWare in 2025: still actively developed and maintained
It kind of goes by under the radar, but aside from HP-UX, Solaris, and AIX, there's another traditional classic UNIX still in active development today: UnixWare (and its sibling, OpenServer). Owned and developed by Xinuos, UnixWare and other related code and IP was acquired by them when the much-hated SCO crashed and burned a
https://www.osnews.com/story/141690/unixware-in-2025-still-actively-developed-and-maintained/