The QNX Operating System: An amazing story of an OS that started 45 years ago. Today it's used by Boston Dynamics and SpaceX, among others.
Who can ignore this? 👇
Versions 4.2, 4.22, and 4.24 all released in 1995. The final version 4 release was 4.25 in 1997. At least one QNX 4 installation ran for over 20 years without a reboot at the ESA. This was possible because peripherals could be hotswapped, drivers could be changed, and network nodes could be added or removed without bringing the system down.