diff --git a/src/testdir/test_modeline.vim b/src/testdir/test_modeline.vim
index 21ac1e9..05a1460 100644
--- a/src/testdir/test_modeline.vim
+++ b/src/testdir/test_modeline.vim
@@ -7,6 +7,24 @@
   set modeline
   call assert_fails('split Xmodeline', 'E518:')
 
+  " Missing end colon (ignored).
+  call writefile(['// vim: set ts=2'], 'Xmodeline')
+  edit Xmodeline_version
+  call assert_equal(8, &ts)
+  bwipe!
+
+  " Missing colon at beginning (ignored).
+  call writefile(['// vim set ts=2:'], 'Xmodeline')
+  edit Xmodeline_version
+  call assert_equal(8, &ts)
+  bwipe!
+
+  " Missing space after vim (ignored).
+  call writefile(['// vim:ts=2:'], 'Xmodeline')
+  edit Xmodeline_version
+  call assert_equal(8, &ts)
+  bwipe!
+
   let &modeline = modeline
   bwipe!
   call delete('Xmodeline')
@@ -60,6 +78,97 @@
   set keymap= iminsert=0 imsearch=-1
 endfunc
 
+func Test_modeline_version()
+  let modeline = &modeline
+  set modeline
+
+  " Test with vim:{vers}: (version {vers} or later).
+  call writefile(['// vim' .. v:version .. ': ts=2:'], 'Xmodeline_version')
+  edit Xmodeline_version
+  call assert_equal(2, &ts)
+  bwipe!
+
+  call writefile(['// vim' .. (v:version - 100) .. ': ts=2:'], 'Xmodeline_version')
+  edit Xmodeline_version
+  call assert_equal(2, &ts)
+  bwipe!
+
+  call writefile(['// vim' .. (v:version + 100) .. ': ts=2:'], 'Xmodeline_version')
+  edit Xmodeline_version
+  call assert_equal(8, &ts)
+  bw!
+
+  " Test with vim>{vers}: (version after {vers}).
+  call writefile(['// vim>' .. v:version .. ': ts=2:'], 'Xmodeline_version')
+  edit Xmodeline_version
+  call assert_equal(8, &ts)
+  bwipe!
+
+  call writefile(['// vim>' .. (v:version - 100) .. ': ts=2:'], 'Xmodeline_version')
+  edit Xmodeline_version
+  call assert_equal(2, &ts)
+  bwipe!
+
+  call writefile(['// vim>' .. (v:version + 100) .. ': ts=2:'], 'Xmodeline_version')
+  edit Xmodeline_version
+  call assert_equal(8, &ts)
+  bwipe!
+
+  " Test with vim<{vers}: (version before {vers}).
+  call writefile(['// vim<' .. v:version .. ': ts=2:'], 'Xmodeline_version')
+  edit Xmodeline_version
+  call assert_equal(8, &ts)
+  bwipe!
+
+  call writefile(['// vim<' .. (v:version - 100) .. ': ts=2:'], 'Xmodeline_version')
+  edit Xmodeline_version
+  call assert_equal(8, &ts)
+  bwipe!
+
+  call writefile(['// vim<' .. (v:version + 100) .. ': ts=2:'], 'Xmodeline_version')
+  edit Xmodeline_version
+  call assert_equal(2, &ts)
+  bwipe!
+
+  " Test with vim={vers}: (version {vers} only).
+  call writefile(['// vim=' .. v:version .. ': ts=2:'], 'Xmodeline_version')
+  edit Xmodeline_version
+  call assert_equal(2, &ts)
+  bwipe!
+
+  call writefile(['// vim=' .. (v:version - 100) .. ': ts=2:'], 'Xmodeline_version')
+  edit Xmodeline_version
+  call assert_equal(8, &ts)
+  bwipe!
+
+  call writefile(['// vim=' .. (v:version + 100) .. ': ts=2:'], 'Xmodeline_version')
+  edit Xmodeline_version
+  call assert_equal(8, &ts)
+  bwipe!
+
+  let &modeline = modeline
+  call delete('Xmodeline_version')
+endfunc
+
+func Test_modeline_colon()
+  let modeline = &modeline
+  set modeline
+
+  call writefile(['// vim: set showbreak=\: ts=2: sw=2'], 'Xmodeline_colon')
+  edit Xmodeline_colon
+
+  " backlash colon should become colon.
+  call assert_equal(':', &showbreak)
+
+  " 'ts' should be set.
+  " 'sw' should be ignored because it is after the end colon.
+  call assert_equal(2, &ts)
+  call assert_equal(8, &sw)
+
+  let &modeline = modeline
+  call delete('Xmodeline_colon')
+endfunc
+
 func s:modeline_fails(what, text, error)
   if !exists('+' .. a:what)
     return
diff --git a/src/version.c b/src/version.c
index 713d06c..ed57cd8 100644
--- a/src/version.c
+++ b/src/version.c
@@ -743,6 +743,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    15,
+/**/
     14,
 /**/
     13,