diff --git a/runtime/doc/builtin.txt b/runtime/doc/builtin.txt
index 0b3d59e..0cddeff 100644
--- a/runtime/doc/builtin.txt
+++ b/runtime/doc/builtin.txt
@@ -1,4 +1,4 @@
-*builtin.txt*	For Vim version 9.1.  Last change: 2024 Feb 12
+*builtin.txt*	For Vim version 9.1.  Last change: 2024 Feb 20
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -10762,10 +10762,10 @@
 			GetWinid()->win_screenpos()
 <
 win_splitmove({nr}, {target} [, {options}])		*win_splitmove()*
-		Move the window {nr} to a new split of the window {target}.
-		This is similar to moving to {target}, creating a new window
-		using |:split| but having the same contents as window {nr}, and
-		then closing {nr}.
+		Temporarily switch to window {target}, then move window {nr}
+		to a new split adjacent to {target}.
+		Unlike commands such as |:split|, no new windows are created
+		(the |window-ID| of window {nr} is unchanged after the move).
 
 		Both {nr} and {target} can be window numbers or |window-ID|s.
 		Both must be in the current tab page.
diff --git a/runtime/doc/windows.txt b/runtime/doc/windows.txt
index 8064748..e264e51 100644
--- a/runtime/doc/windows.txt
+++ b/runtime/doc/windows.txt
@@ -1,4 +1,4 @@
-*windows.txt*   For Vim version 9.1.  Last change: 2022 Nov 27
+*windows.txt*   For Vim version 9.1.  Last change: 2024 Feb 20
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -519,35 +519,33 @@
 
 						*CTRL-W_K*
 CTRL-W K	Move the current window to be at the very top, using the full
-		width of the screen.  This works like closing the current
-		window and then creating another one with ":topleft split",
-		except that the current window contents is used for the new
-		window.
+		width of the screen.  This works like `:topleft split`, except
+		it is applied to the current window and no new window is
+		created.
 
 						*CTRL-W_J*
 CTRL-W J	Move the current window to be at the very bottom, using the
-		full width of the screen.  This works like closing the current
-		window and then creating another one with ":botright split",
-		except that the current window contents is used for the new
-		window.
+		full width of the screen.  This works like `:botright split`,
+		except it is applied to the current window and no new window
+		is created.
 
 						*CTRL-W_H*
 CTRL-W H	Move the current window to be at the far left, using the
-		full height of the screen.  This works like closing the
-		current window and then creating another one with
-		`:vert topleft split`, except that the current window contents
-		is used for the new window.
+		full height of the screen.  This works like
+		`:vert topleft split`, except it is applied to the current
+		window and no new window is created.
 
 						*CTRL-W_L*
 CTRL-W L	Move the current window to be at the far right, using the full
-		height of the screen.  This works like closing the
-		current window and then creating another one with
-		`:vert botright split`, except that the current window
-		contents is used for the new window.
+		height of the screen.  This works like `:vert botright split`,
+		except it is applied to the current window and no new window
+		is created.
 
 						*CTRL-W_T*
 CTRL-W T	Move the current window to a new tab page.  This fails if
 		there is only one window in the current tab page.
+		This works like `:tab split`, except the previous window is
+		closed.
 		When a count is specified the new tab page will be opened
 		before the tab page with this index.  Otherwise it comes after
 		the current tab page.
diff --git a/src/testdir/test_window_cmd.vim b/src/testdir/test_window_cmd.vim
index c898a23..5b50f9d 100644
--- a/src/testdir/test_window_cmd.vim
+++ b/src/testdir/test_window_cmd.vim
@@ -1104,6 +1104,18 @@
   leftabove split b
   leftabove vsplit c
   leftabove split d
+
+  " win_splitmove doesn't actually create or close any windows, so expect an
+  " unchanged winid and no WinNew/WinClosed events, like :wincmd H/J/K/L.
+  let s:triggered = []
+  augroup WinSplitMove
+    au!
+    au WinNewPre * let s:triggered += ['WinNewPre']
+    au WinNew * let s:triggered += ['WinNew', win_getid()]
+    au WinClosed * let s:triggered += ['WinClosed', str2nr(expand('<afile>'))]
+  augroup END
+  let winid = win_getid()
+
   call assert_equal(0, win_splitmove(winnr(), winnr('l')))
   call assert_equal(bufname(winbufnr(1)), 'c')
   call assert_equal(bufname(winbufnr(2)), 'd')
@@ -1126,6 +1138,11 @@
   call assert_equal(bufname(winbufnr(3)), 'a')
   call assert_equal(bufname(winbufnr(4)), 'd')
   call assert_fails('call win_splitmove(winnr(), winnr("k"), test_null_dict())', 'E1297:')
+  call assert_equal([], s:triggered)
+  call assert_equal(winid, win_getid())
+
+  unlet! s:triggered
+  au! WinSplitMove
   only | bd
 
   call assert_fails('call win_splitmove(winnr(), 123)', 'E957:')
diff --git a/src/version.c b/src/version.c
index cf1c9da..9ceb6ce 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    117,
+/**/
     116,
 /**/
     115,
diff --git a/src/window.c b/src/window.c
index de43476..1ae7b27 100644
--- a/src/window.c
+++ b/src/window.c
@@ -935,6 +935,8 @@
  * When "new_wp" is NULL: split the current window in two.
  * When "new_wp" is not NULL: insert this window at the far
  * top/left/right/bottom.
+ * On failure, if "new_wp" was not NULL, no changes will have been made to the
+ * window layout or sizes.
  * Return FAIL for failure, OK otherwise.
  */
     int
@@ -964,7 +966,8 @@
     // Do not redraw here, curwin->w_buffer may be invalid.
     ++RedrawingDisabled;
 
-    trigger_winnewpre();
+    if (new_wp == NULL)
+	trigger_winnewpre();
 
     if (flags & WSP_TOP)
 	oldwin = firstwin;
@@ -1444,7 +1447,7 @@
     /*
      * make the new window the current window
      */
-    (void)win_enter_ext(wp, WEE_TRIGGER_NEW_AUTOCMDS
+    (void)win_enter_ext(wp, (new_wp == NULL ? WEE_TRIGGER_NEW_AUTOCMDS : 0)
 		    | WEE_TRIGGER_ENTER_AUTOCMDS | WEE_TRIGGER_LEAVE_AUTOCMDS);
     if (flags & WSP_VERT)
 	p_wiw = i;