Variable: kill-ring-max
kill-ring-max is a customizable variable defined in simple.el.gz.
Value
120
Documentation
Maximum length of kill ring before oldest elements are thrown away.
This variable was added, or its default value changed, in Emacs 29.1.
Probably introduced at or before Emacs version 29.1.
Source Code
;; Defined in /usr/src/emacs/lisp/simple.el.gz
(defcustom kill-ring-max 120
"Maximum length of kill ring before oldest elements are thrown away."
:type 'natnum
:group 'killing
:version "29.1")