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-rw-r--r--lisp/emacs-lisp/package.el4
1 files changed, 3 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/package.el b/lisp/emacs-lisp/package.el
index 43a9aa7f710..9a350aadaca 100644
--- a/lisp/emacs-lisp/package.el
+++ b/lisp/emacs-lisp/package.el
@@ -252,7 +252,9 @@ number from the archive with the highest priority is
selected. When higher versions are available from archives with
lower priorities, the user has to select those manually.
-Archives not in this list have the priority 0.
+Archives not in this list have the priority 0, as have packages
+that are already installed. If you use negative priorities for
+the archives, they will not be upgraded automatically.
See also `package-menu-hide-low-priority'."
:type '(alist :key-type (string :tag "Archive name")