diff --git a/runtime/filetype.vim b/runtime/filetype.vim
index 8654362af8..200153e75e 100644
--- a/runtime/filetype.vim
+++ b/runtime/filetype.vim
@@ -1032,6 +1032,9 @@ au BufNewFile,BufRead *.jsonnet,*.libsonnet	setf jsonnet
 " Julia
 au BufNewFile,BufRead *.jl			setf julia
 
+" KDL
+au BufNewFile,BufRead *.kdl			setf kdl
+
 " Kixtart
 au BufNewFile,BufRead *.kix			setf kix
 
diff --git a/src/testdir/test_filetype.vim b/src/testdir/test_filetype.vim
index a6d87aef20..790d98c550 100644
--- a/src/testdir/test_filetype.vim
+++ b/src/testdir/test_filetype.vim
@@ -300,6 +300,7 @@ let s:filename_checks = {
     \ 'jsp': ['file.jsp'],
     \ 'julia': ['file.jl'],
     \ 'kconfig': ['Kconfig', 'Kconfig.debug', 'Kconfig.file'],
+    \ 'kdl': ['file.kdl'],
     \ 'kivy': ['file.kv'],
     \ 'kix': ['file.kix'],
     \ 'kotlin': ['file.kt', 'file.ktm', 'file.kts'],
diff --git a/src/version.c b/src/version.c
index bb15492083..7e93b11da7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1263,
 /**/
     1262,
 /**/