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-rw-r--r--lisp/progmodes/xref.el5
1 files changed, 5 insertions, 0 deletions
diff --git a/lisp/progmodes/xref.el b/lisp/progmodes/xref.el
index fe0af0c3430..26471b0df3f 100644
--- a/lisp/progmodes/xref.el
+++ b/lisp/progmodes/xref.el
@@ -19,6 +19,11 @@
;;; Commentary:
+;; NOTE: The xref API is still experimental and can change in major,
+;; backward-incompatible ways. Everyone is encouraged to try it, and
+;; report to us any problems or use cases we hadn't anticiated, by
+;; sending an email to emacs-devel, or `M-x report-emacs-bug'.
+;;
;; This file provides a somewhat generic infrastructure for cross
;; referencing commands, in particular "find-definition".
;;