Onyx

OnyX is a multifunction utility that you can use to verify the structure of the system files; perform cleaning and computer maintenance tasks; configure parameters in the Finder, Dock, Safari, and some Apple applications; delete caches; remove certain problematic folders and files; rebuild various databases and indexes; and more. It is a reliable application that provides a clean interface to many tasks that would otherwise require complex commands to be typed using a command–line interface.

updates

there is always change
improvement is the best kind
embrace as needed

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More hardware, more software, more operating systems and more devices, mean more and more updates. Some updates are more notable than others.