Preference Caching is something that has been within OSX for some time, in Mountain Lion it was quite prominent with plists such as the Dock plist.

When Dockutil 1.1.4 was released it’s major change as noted in the release notes was to restart  this preference caching service called: cfprefsd, without which the settings written to the com.apple.dock.plist would later be overwritten.

So why am I mumbling along about this?

Well, recently i’ve been involved in discussions on this & wanted to post something to give others the heads up in case anyone else struggles with it.

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