Updating Emacs packages


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I use ELPA, Marmalade, and MELPA to manage Emacs extensions.

This block of elisp in my config file adds all of the package repositories I use.

(setq package-archives
      '(("gnu" . "http://elpa.gnu.org/packages/")
        ("marmalade" . "http://marmalade-repo.org/packages/")
        ("melpa" . "http://melpa.milkbox.net/packages/")))

Occasionally, I must run M-x package-list-packages to update then pacakge listing. This creates a *Packages* buffer that shows the available and installed packages. In this buffer, type U to mark the upgradeable packages. (note, plan to restart emacs after this process...) Emacs will ask for confirmation on the installation of the new packages, then confirmation on the deletion of the old packages.