Apple updates OS X El Capitan with final non-security fixes

Apple today updated OS X El Capitan, likely for the last time other than for security patches.
The update -- the sixth since El Capitan debuted last September -- signaled that its successor, macOS Sierra, may appear earlier on the calendar than the last several annual upgrades.
El Capitan 10.11.6 featured a very short list of resolved stability and compatibility issues, including unsaved parental control settings and inaccessible networked speakers and multi-function printers. A trio of enterpr