The only still living variant is AIX. Some of the code is in the XNU kernel, although that is a monolithic kernel rather than a microkernel. Apple converted it to a monolithic design for performance reasons.
That said, this article suggests that AIX is not using a microkernel either:
https://en.wikipedia.org/wiki/OSF/1
The only still living variant is AIX. Some of the code is in the XNU kernel, although that is a monolithic kernel rather than a microkernel. Apple converted it to a monolithic design for performance reasons.
That said, this article suggests that AIX is not using a microkernel either:
https://tedium.co/2019/02/28/ibm-workplace-os-taligent-histo...