diff --git a/CHANGELOG.md b/CHANGELOG.md
index dff7f5c..96d1fb8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -38,3 +38,10 @@
 * NEW: You can show or hide the grid.
 * Changed the multi-language implementation.(Please migrate to the new way as soon as possible)
 * Changed the period of kdj from 14 to 9.
+
+## [0.4.0]
+
+* Changed the way the marker values are displayed, from right to left.
+* Changed the UI when gridlines are hidden.
+* Upgraded the display of real-time prices.
+* More configurations are available.
\ No newline at end of file
diff --git a/README.md b/README.md
index 59d9ec2..d72ffbd 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,8 @@ Maybe this is the best k chart in Flutter.Support drag,scale,long press,fling.An
 
 <img src="https://github.com/mafanwei/k_chart/blob/master/example/images/Screenshot2.jpg" width="375" alt="Screenshot"/>
 
+<img src="https://github.com/mafanwei/k_chart/blob/master/example/images/Screenshot3.jpeg" width="375" alt="Screenshot"/>
+
 #### gif
 
 ![demo](https://github.com/mafanwei/k_chart/blob/master/example/images/demo.gif)
@@ -19,7 +21,7 @@ Maybe this is the best k chart in Flutter.Support drag,scale,long press,fling.An
 #### Install
 ```
 dependencies:
-  k_chart: ^0.3.2
+  k_chart: ^0.4.0
 ```
 or use latest：
 ```
@@ -54,6 +56,7 @@ Container(
                 bgColor: [Colors.black, Colors.black],// The background color of the chart is gradient
                 translations: kChartTranslations,// Graphic language
                 volHidden: false,// hide volume
+                showNowPrice: true,// show now price
                 isOnDrag: (isDrag){},// true is on Drag.Don't load data while Draging.
                 onSecondaryTap:(){}// on secondary rect taped.
               ),
diff --git a/example/images/Screenshot3.jpeg b/example/images/Screenshot3.jpeg
new file mode 100644
index 0000000..66de95e
Binary files /dev/null and b/example/images/Screenshot3.jpeg differ
diff --git a/pubspec.yaml b/pubspec.yaml
index 2a90672..c831e71 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: k_chart
 description: A Flutter K Chart.
-version: 0.3.2
+version: 0.4.0
 homepage: https://github.com/mafanwei/k_chart
 
 environment: