How to delete autosaved file versions in macOS
In a number of Apple Mac apps (including Preview, Pages, and Keynote), macOS added the quiet feature of retaining older versions of document you modify. This versioning feature doesn’t require Time Machine, even though it looks a lot like that feature and service. You don’t even have to enable it—it just works in apps that support it. You can access past versions via File > Revert To > Browse All Versions.
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