Support » Everything else WordPress » What does upgrade.php really do?

  • Just curious. I know you have to run it to upgrade [right?] but what does it “actually” do to upgrade the installation? I marvel at how it can do whatever it does in one step!! 😉

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  • Moderator Peter Westwood

    (@westi)

    WordPress Lead Developer

    upgrade.php ensures that any necessary changes to database structure required by a new version are made along with adding any new default option values to the database.

    westi

    Cool! Thanks!

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