If I see an update of an application, I want to have the latest and hottest stuff, of course. But first of all I read the changelog to know what is new or changed, and then I do run the update.
Sometimes, the developers change the behavior of a certain feature or in worst case it is even removed. If I really need this functionality exactly as it was before, it would make sense to downgrade the fresh installed update back to the old version.
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