pull down to refresh

If you never install pre-releases, it sounds to me like the documentation you reference indicates you don't need to worry about that flag. Or am I missing something?
This is correct. It's only needed if you're updating to a random commit that's not tagged as a release. Release candidates are tested for several weeks in advance to identify any bugs. So the database upgrade for a release is less risky and thus the database will update for a release regardless of the flag.
If you're installing the latest commit from master, there may be untested new features. Adding the database-upgrade=true flag means you're accepting the risk of a breaking change (you may have to wait for a fix, your node may be inoperable in the meantime.)
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That is my impression too. But I am a bit worried that not upgrading my database may become an issue for me a few releases down the line. I wonder whether this guy's problem is due to not upgrading their database.
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Yes, but my reading of the above is that the database does, indeed, get upgraded upon major release version anyway. I'm quite sure that's the case with my node, as I waited for the db migrations to finish for a min or two....
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Yes, this reassures me. Thanks for clarifying all that to me,
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