Once you’ve found the version you want, you can try copying the desired content and pasting it into the current version of your document on the left—depending on the app and type of document, you may not even have to leave the version browser.
If copying and pasting doesn’t work, you can instead click Restore to revert the document to that previous version. Unlike Time Machine, the version browser doesn’t ask if you want to overwrite the current version, so if you aren’t sure you want a wholesale reversion, press Option to change the button to Restore a Copy. That opens a separate copy of the document in the app so you can pick and choose what you want to move from the old version back into the current version.
More Versioning Details
Although versioning is easy to use, there’s quite a bit going on behind the scenes, which can generate some questions:
● What about copies of a document? Copies of a document, such as you would make using File > Duplicate, File > Save As, or in the Finder, are different files from the versioning perspective and lose access to the original file’s versions.
● Is iCloud Drive supported? iCloud Drive maintains its own version database, so although you may have to click a Load Version link to see a particular version when browsing past versions, they should all be accessible.
● Are files shared between my Macs versioned? Versions are stored at the top level of the document’s volume, so while it works with files stored on an external drive that moves between Macs, files shared between Macs over a network or using a file-sharing service like Dropbox will have different versions on each Mac, based on where the file was open when it was saved.
● Are there any privacy or security risks to versioning? The version database is completely locked down and better protected than regular documents on your Mac. Also, if you open a confidential file but close it without making any changes or saving, it won’t be added to the version database.
No one expects to make mistakes, but if you do, macOS’s versioning may save you from having to re-create work. Look for that File > Revert To menu in your favorite apps to see if they support versioning, and if they do, give it a try so you’ll know how to use it if you ever need it.