diff --git a/runtime/doc/autocmd.txt b/runtime/doc/autocmd.txt
index 173892c..4adf007 100644
--- a/runtime/doc/autocmd.txt
+++ b/runtime/doc/autocmd.txt
@@ -1,4 +1,4 @@
-*autocmd.txt*   For Vim version 8.0.  Last change: 2017 Dec 17
+*autocmd.txt*   For Vim version 8.0.  Last change: 2018 Jan 31
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -500,6 +500,13 @@
 				command is defined.  An alternative is to
 				always define the user command and have it
 				invoke an autoloaded function.  See |autoload|.
+							*CmdlineChanged*
+CmdlineChanged			After a change was made to the text inside
+				command line.  Be careful not to mess up the
+				command line, it may cause Vim to lock up.
+				<afile> is set to a single character,
+				indicating the type of command-line.
+				|cmdwin-char|
 							*CmdlineEnter*
 CmdlineEnter			After moving the cursor to the command line,
 				where the user can type a command or search
diff --git a/src/ex_getln.c b/src/ex_getln.c
index 421c6b7..837d299 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -1951,6 +1951,11 @@
 #endif
 
 cmdline_changed:
+#ifdef FEAT_AUTOCMD
+	/* Trigger CmdlineChanged autocommands. */
+	trigger_cmd_autocmd(cmdline_type, EVENT_CMDLINECHANGED);
+#endif
+
 #ifdef FEAT_SEARCH_EXTRA
 	/*
 	 * 'incsearch' highlighting.
diff --git a/src/fileio.c b/src/fileio.c
index ba9ec9e..fb5af64 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -7786,6 +7786,7 @@
     {"BufWritePost",	EVENT_BUFWRITEPOST},
     {"BufWritePre",	EVENT_BUFWRITEPRE},
     {"BufWriteCmd",	EVENT_BUFWRITECMD},
+    {"CmdlineChanged",	EVENT_CMDLINECHANGED},
     {"CmdlineEnter",	EVENT_CMDLINEENTER},
     {"CmdlineLeave",	EVENT_CMDLINELEAVE},
     {"CmdwinEnter",	EVENT_CMDWINENTER},
diff --git a/src/testdir/test_autocmd.vim b/src/testdir/test_autocmd.vim
index d8fddff..b7d43b5 100644
--- a/src/testdir/test_autocmd.vim
+++ b/src/testdir/test_autocmd.vim
@@ -812,6 +812,18 @@
 endfunc
 
 func Test_Cmdline()
+  au! CmdlineChanged : let g:text = getcmdline()
+  let g:text = 0
+  call feedkeys(":echom 'hello'\<CR>", 'xt')
+  call assert_equal("echom 'hello'", g:text)
+  au! CmdlineChanged
+
+  au! CmdlineChanged : let g:entered = expand('<afile>')
+  let g:entered = 0
+  call feedkeys(":echom 'hello'\<CR>", 'xt')
+  call assert_equal(':', g:entered)
+  au! CmdlineChanged
+
   au! CmdlineEnter : let g:entered = expand('<afile>')
   au! CmdlineLeave : let g:left = expand('<afile>')
   let g:entered = 0
diff --git a/src/version.c b/src/version.c
index bab7736..dad2715 100644
--- a/src/version.c
+++ b/src/version.c
@@ -772,6 +772,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1445,
+/**/
     1444,
 /**/
     1443,
diff --git a/src/vim.h b/src/vim.h
index 4765b78..1f9671a 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -1269,6 +1269,7 @@
     EVENT_BUFWRITEPOST,		/* after writing a buffer */
     EVENT_BUFWRITEPRE,		/* before writing a buffer */
     EVENT_BUFWRITECMD,		/* write buffer using command */
+    EVENT_CMDLINECHANGED,	/* command line was modified*/
     EVENT_CMDLINEENTER,		/* after entering the command line */
     EVENT_CMDLINELEAVE,		/* before leaving the command line */
     EVENT_CMDWINENTER,		/* after entering the cmdline window */