From a cursory glimpse, it seems Apple only pathes CVEs in OSS components when the OS itself gets an upgrade.
The next time there is a problem in Apache, the chances seem pretty high it will remain unpatched on macOS for weeks, if not months.
The next time there is a problem in Apache, the chances seem pretty high it will remain unpatched on macOS for weeks, if not months.
Also, the server variants ran most services (calendars, etc.) behind it.
Edit: premature posting.
They removed the UI to enable it in Mountain Lion, but the functionality is still built in and can be enabled if you install Apple's MacOS Server app from the app store. Or you can just enable it from the command line.
This is more about ISPs where you live than anything else. Most people don't want the hassle.