diff --git a/Assets/XCharts/CHANGELOG-EN.md b/Assets/XCharts/CHANGELOG-EN.md
index ad2e8f9d..e2c43993 100644
--- a/Assets/XCharts/CHANGELOG-EN.md
+++ b/Assets/XCharts/CHANGELOG-EN.md
@@ -48,7 +48,8 @@
 
 ## v2.8.2
 
-* (2022.07.13) Release `v2.8.2` version
+* (2022.08.15) Release `v2.8.2` version
+* (2022.08.15) Added support for the `HeatmapChart` formatter for custom Tooltip
 * (2022.07.13) Fixed `SerieLabel` refresh exception #215
 * (2022.06.30) Optimize `Radar` so that the `Tooltip` layer is above `Indicator`
 
diff --git a/Assets/XCharts/CHANGELOG.md b/Assets/XCharts/CHANGELOG.md
index dcb8f3b6..873aa796 100644
--- a/Assets/XCharts/CHANGELOG.md
+++ b/Assets/XCharts/CHANGELOG.md
@@ -48,7 +48,8 @@
 
 ## v2.8.2
 
-* (2022.07.13) 发布`v2.8.2`版本
+* (2022.08.15) 发布`v2.8.2`版本
+* (2022.08.15) 增加`HeatmapChart`对自定义`Tooltip`的`formatter`的支持
 * (2022.07.13) 修复`SerieLabel`刷新异常的问题 #215
 * (2022.06.30) 优化`Radar`让`Tooltip`的层在`Indicator`之上
 
diff --git a/Assets/XCharts/Runtime/XChartsMgr.cs b/Assets/XCharts/Runtime/XChartsMgr.cs
index 4b8efeca..8196987e 100644
--- a/Assets/XCharts/Runtime/XChartsMgr.cs
+++ b/Assets/XCharts/Runtime/XChartsMgr.cs
@@ -34,7 +34,7 @@ class XChartsVersion
     public class XChartsMgr : MonoBehaviour
     {
         internal static string _version = "2.8.2";
-        internal static int _versionDate = 20220713;
+        internal static int _versionDate = 20220815;
         public static string version { get { return _version; } }
         public static int versionDate { get { return _versionDate; } }
         public static string fullVersion { get { return version + "-" + versionDate; } }
diff --git a/Assets/XCharts/package.json b/Assets/XCharts/package.json
index 63cd62d9..1e02ef89 100644
--- a/Assets/XCharts/package.json
+++ b/Assets/XCharts/package.json
@@ -2,8 +2,8 @@
   "name": "com.monitor1394.xcharts",
   "displayName": "XCharts",
   "version": "2.8.2",
-  "date": "20220713",
-  "checkdate": "20220713",
+  "date": "20220815",
+  "checkdate": "20220815",
   "desc": "如果 XCharts 对您有帮助，希望您能在 Github 上点 Star 支持，非常感谢！",
   "unity": "2018.3",
   "description": "A charting and data visualization library for Unity.",
diff --git a/Assets/XCharts/version.json b/Assets/XCharts/version.json
index e08d822f..7b5a523c 100644
--- a/Assets/XCharts/version.json
+++ b/Assets/XCharts/version.json
@@ -1,7 +1,7 @@
 {
     "version": "2.8.2",
-    "date": "20220713",
-    "checkdate": "20220713",
+    "date": "20220815",
+    "checkdate": "20220815",
     "desc": "如果 XCharts 对您有帮助，希望您能在 Github 上点 Star 支持，非常感谢！",
     "homepage": "https://github.com/monitor1394/unity-ugui-XCharts"
 }
\ No newline at end of file