diff --git a/framework/CHANGELOG.md b/framework/CHANGELOG.md
index 34d7bb0ab6..362ae67c7c 100644
--- a/framework/CHANGELOG.md
+++ b/framework/CHANGELOG.md
@@ -57,11 +57,13 @@ Yii Framework 2 Change Log
 - Enh #10056: Allowed any callable to be passed to `ActionColumn::$urlCreator` (freezy-sk)
 - Enh #10061: `yii\helpers\BaseInflector::transliterate()` is now public. Introduced different levels of transliteration strictness (silverfire)
 - Enh #10118: Allow easy extension of slug generation in `yii\behaviors\SluggableBehavior` (cebe, hesna)
+- Enh #10149: Made `yii\db\Connection` serializable (Sam Mousa)
 - Enh: Added last resort measure for `FileHelper::removeDirectory()` fail to unlink symlinks under Windows (samdark)
 - Chg #9369: `Yii::$app->user->can()` now returns `false` instead of erroring in case `authManager` component is not configured (creocoder)
 - Chg #9411: `DetailView` now automatically sets container tag ID in case it's not specified (samdark)
 - Chg #9953: `TimestampBehavior::getValue()` changed to make value processing consistent with `AttributeBehavior::getValue()` (silverfire)
 - New #10083: Added wrapper for PHP webserver (samdark)
+- Enh #10098: Changed `yii.confirm` context bind to triggered dom element. (lichunqiang)
 - Enh #10158: Added the possibility to specify CSS and Javascript options per file in `\yii\web\AssetBundle` (machour)
 
 2.0.6 August 05, 2015
diff --git a/framework/UPGRADE.md b/framework/UPGRADE.md
index ccad8a6fc5..9f789f3b81 100644
--- a/framework/UPGRADE.md
+++ b/framework/UPGRADE.md
@@ -25,7 +25,8 @@ initialization to support wider range of allowed characters. Because of this cha
   See the [Cache Flushing Guide](http://www.yiiframework.com/doc-2.0/guide-caching-data.html#cache-flushing)
   - If you implement `parseRequest()` or `createUrl()` and rely on parameter names, call `substitutePlaceholderNames()`
   in order to replace temporary IDs with parameter names after doing matching.
-
+* The context of `yii.confirm` function in `yii.js` was changed to the triggered dom element.
+  - If you rewrited the `yii.confirm` function, you can get the triggered dom element as: `this` or `$(this)` to get jquery object.
 
 Upgrade from Yii 2.0.5
 ----------------------
diff --git a/framework/assets/yii.js b/framework/assets/yii.js
index ccf1c96181..da43dd8865 100644
--- a/framework/assets/yii.js
+++ b/framework/assets/yii.js
@@ -329,7 +329,7 @@ yii = (function ($) {
             }
 
             if (message !== undefined) {
-                pub.confirm(message, function () {
+                $.proxy(pub.confirm, this)(message, function () {
                     pub.handleAction($this, event);
                 });
             } else {
diff --git a/framework/db/Connection.php b/framework/db/Connection.php
index e1a1bc02aa..47a17e42ac 100644
--- a/framework/db/Connection.php
+++ b/framework/db/Connection.php
@@ -945,4 +945,14 @@ class Connection extends Component
 
         return null;
     }
+
+    /**
+     * Close the connection before serializing.
+     * @return array
+     */
+    public function __sleep()
+    {
+        $this->close();
+        return array_keys((array) $this);
+    }
 }
diff --git a/tests/framework/db/ConnectionTest.php b/tests/framework/db/ConnectionTest.php
index d9084a3a16..2108baddc8 100644
--- a/tests/framework/db/ConnectionTest.php
+++ b/tests/framework/db/ConnectionTest.php
@@ -11,6 +11,7 @@ use yii\db\Transaction;
  */
 class ConnectionTest extends DatabaseTestCase
 {
+
     public function testConstruct()
     {
         $connection = $this->getConnection(false);
@@ -42,6 +43,17 @@ class ConnectionTest extends DatabaseTestCase
         $connection->open();
     }
 
+    public function testSerialize()
+    {
+        $connection = $this->getConnection(false, false);
+        $connection->open();
+        $serialized = serialize($connection);
+        $unserialized = unserialize($serialized);
+        $this->assertInstanceOf('yii\db\Connection', $unserialized);
+
+        $this->assertEquals(123, $connection->createCommand("SELECT 123")->queryScalar());
+    }
+
     public function testGetDriverName()
     {
         $connection = $this->getConnection(false, false);