commit https://github.com/vim/vim/commit/4a4b821085847651b71d8ad9fab9f180635cb453 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Sep 8 17:50:41 2015 +0200 patch 7.4.857 Problem: Dragging the current tab with the mouse doesn't work properly. Solution: Take the current tabpage index into account. (Hirohito Higashi)

--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    857,
+/**/
     856,
 /**/
     855,