Variable: kept-old-versions

kept-old-versions is a customizable variable defined in files.el.gz.

Value

2

Documentation

Number of oldest versions to keep when a new numbered backup is made.

See version-control for how Emacs decides when to make numbered backups.

View in manual

Probably introduced at or before Emacs version 17.

Source Code

;; Defined in /usr/src/emacs/lisp/files.el.gz
(defcustom kept-old-versions 2
  "Number of oldest versions to keep when a new numbered backup is made.
See `version-control' for how Emacs decides when to make numbered backups."
  :type 'natnum
  :safe #'natnump
  :group 'backup)