* isearch.el (isearch-allow-prefix): New user option.

        (isearch-other-meta-char): don't exit isearch when a prefix
        argument is typed whilst `isearch-allow-prefix' is non-nil.

        * search.texi (Isearch Scroll): Rename to "Not Exiting Isearch".
        (Net Exiting Isearch): Document new user option
        `isearch-allow-prefix'.

	* etc/NEWS.  Entry for this change.

1 files changed, 4 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index 0b533efe163..8732ffa2fcd 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -292,6 +292,10 @@ when it's nil).
 *** `query-replace' skips invisible text when `search-invisible' is nil,
 and opens overlays with hidden text when `search-invisible' is `open'.
 
++++
+*** By default, prefix arguments do not now terminate Isearch mode.
+Set `isearch-allow-prefix' to nil to restore old behavior.
+
 ** MH-E has been updated to MH-E version 8.5.
 See MH-E-NEWS for details.