diff -Nru ukui-desktop-environment-1.2.0/debian/changelog ukui-desktop-environment-1.2.1/debian/changelog
--- ukui-desktop-environment-1.2.0/debian/changelog	2018-09-29 08:09:58.000000000 +0000
+++ ukui-desktop-environment-1.2.1/debian/changelog	2019-03-18 02:20:59.000000000 +0000
@@ -1,3 +1,13 @@
+ukui-desktop-environment (1.2.1) disco; urgency=medium
+
+  * Drop notification-daemon.
+  * Drop mate-polkit.
+  * Add kylin-nm.
+  * Bump standars-version to 4.3.0, compat level to 12.
+  * Set NotificationDeamon theme to slide.
+
+ -- handsome_feng <jianfengli@ubuntukylin.com>  Mon, 18 Mar 2019 10:20:59 +0800
+
 ukui-desktop-environment (1.2.0) cosmic; urgency=medium
 
   * Drop ubuntu-wallpapers.
diff -Nru ukui-desktop-environment-1.2.0/debian/compat ukui-desktop-environment-1.2.1/debian/compat
--- ukui-desktop-environment-1.2.0/debian/compat	2018-09-29 08:09:58.000000000 +0000
+++ ukui-desktop-environment-1.2.1/debian/compat	2019-03-18 02:20:59.000000000 +0000
@@ -1 +1 @@
-11
+12
diff -Nru ukui-desktop-environment-1.2.0/debian/control ukui-desktop-environment-1.2.1/debian/control
--- ukui-desktop-environment-1.2.0/debian/control	2018-09-29 08:09:58.000000000 +0000
+++ ukui-desktop-environment-1.2.1/debian/control	2019-03-18 02:20:59.000000000 +0000
@@ -3,9 +3,9 @@
 Priority: optional
 Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
 Uploaders: handsome_feng <jianfengli@ubuntukylin.com>,
-Build-Depends: debhelper (>= 11),
+Build-Depends: debhelper (>= 12),
                lsb-release,
-Standards-Version: 4.2.1
+Standards-Version: 4.3.0
 Homepage: http://www.ukui.org/
 Vcs-Git: https://github.com/ukui/ukui-desktop-environment.git
 Vcs-Browser: https://github.com/ukui/ukui-desktop-environment
@@ -23,8 +23,8 @@
          ukui-panel,
          mate-desktop,
          ukui-menus,
-         mate-notification-daemon | notification-daemon,
-         mate-polkit,
+         mate-notification-daemon,
+         ukui-polkit,
          ukui-settings-daemon,
          mate-terminal,
          ubuntukylin-theme (>= 1.6.2),
@@ -55,7 +55,7 @@
             ffmpegthumbnailer,
             mate-calc,
             ukui-media,
-            mate-notification-daemon | notification-daemon,
+            mate-notification-daemon,
             ukui-power-manager,
             ukui-screensaver,
             gnome-screenshot,
@@ -63,6 +63,7 @@
 Suggests: mail-reader | thunderbird,
           network-manager-gnome,
           x-www-browser | firefox,
+          kylin-nm,
 Description: UKUI Desktop Environment (metapackage)
  The UKUI Desktop Environment is the continuation of MATE. It provides an
  intuitive and attractive desktop environment using traditional metaphors for
diff -Nru ukui-desktop-environment-1.2.0/debian/ukui-ubuntu.gschema.override ukui-desktop-environment-1.2.1/debian/ukui-ubuntu.gschema.override
--- ukui-desktop-environment-1.2.0/debian/ukui-ubuntu.gschema.override	2018-09-29 08:09:58.000000000 +0000
+++ ukui-desktop-environment-1.2.1/debian/ukui-ubuntu.gschema.override	2019-03-18 02:20:59.000000000 +0000
@@ -14,3 +14,9 @@
 [org.gnome.desktop.wm.keybindings]
 show-desktop=['<Control><Alt>d','<Super>d']
 minimize=['<Alt>F9']
+
+[org.ukui.ukwm]
+edge-tiling=true
+
+[org.mate.NotificationDaemon]
+theme='slide'