for a changed file. Since checking a remote file is too slow, these
modes do not check or revert remote files.
+@vindex auto-revert-check-vc-info
+ Whenever Auto Revert mode reverts the buffer, it updates the version
+control information, such as the version control number displayed in
+the mode line. However, this information may not be properly updated
+if the version control state changes outside of Emacs---for example,
+if a new version is checked in from outside the current Emacs session.
+If you set @code{auto-revert-check-vc-info} to @code{t}, Auto Revert
+mode will update the version control status information periodically.
+
@node Auto Save
@section Auto-Saving: Protection Against Disasters
@cindex Auto Save mode