Issue corrected that occurred with the last update of macOS Big Sur. Issue corrected that occurred with the 'Mailboxes in Mail' option in the Maintenance pane. Improved compatibility with the Apple M1 chip. OnyX 3.9.6 for macOS Big Sur 11 Onyx 3.9.3 Pro
Use the specific version, and don't try to use a non-compatible version.
There is a specific version of OnyX for each major version of the operating system. OnyX is a reliable application which provides a clean interface to many tasks that would otherwise require complex commands to be typed using a command-line interface. OnyX is a multifunction utility that you can use to verify the structure of the system files, to run miscellaneous maintenance and cleaning tasks, to configure parameters in the Finder, Dock, Safari, and some Apple applications, to delete caches, to remove certain problematic folders and files, to rebuild various databases and indexes, and more.
