Variable: package-archive-version
package-archive-version is a variable defined in package.el.gz.
Value
1
Documentation
Version number of the package archive understood by package.el.
Lower version numbers than this will probably be understood as well.
Source Code
;; Defined in /usr/src/emacs/lisp/emacs-lisp/package.el.gz
;;; Packages on Archives
;; The following variables store information about packages available
;; from archives. The most important of these is
;; `package-archive-contents' which is initially populated by the
;; function `package-read-all-archive-contents' from a cache on disk.
;; The `package-initialize' command is also closely related to this
;; section, but it has its own section.
(defconst package-archive-version 1
"Version number of the package archive understood by package.el.
Lower version numbers than this will probably be understood as well.")