diff --git a/Changelog.md b/Changelog.md
index 8f8d1942..973ba30b 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,6 +1,15 @@
-## Changelog
+## 2.0.0
+2013-10-17
+
+* Performance optimization. [#100](https://github.com/oklai/koala/issues/100)
+* Supports using shift to select multiple files. [#79](https://github.com/oklai/koala/issues/79)
+* Made heavy typos corrections into french l10n.
+
+[Windows](https://www.amazon.com/clouddrive/share?s=GmpWIhgEQ5EnZDOrR0D7v8), [Mac OS X](https://www.amazon.com/clouddrive/share?s=YV_QSvRrRR8tEm5T1hLgsI), Linux: [32bit](https://www.amazon.com/clouddrive/share?s=ws3UhCIcT4Mo2uHUXNXeeo)/[64bit](https://www.amazon.com/clouddrive/share?s=yHzPh3FXTdMnrp1ozgI0g8), Ubuntu [32bit](https://www.amazon.com/clouddrive/share?s=3XIafPGUSPMsP5GonnG9bs)/[64bit](https://www.amazon.com/clouddrive/share?s=hpHEGI4eRXco1-joGp22J8)
+
+## 2.0.0-beta
+2013-9-2
 
-#### 2.0.0-beta (2013-9-2)
 * JS/CSS minify and combine. [docs](https://github.com/oklai/koala/wiki/JS-CSS-minify-and-combine)
 * Convert CSS images to base64. [docs](https://github.com/oklai/koala/wiki/JS-CSS-minify-and-combine#convert-css-images-to-base64)
 * Build-in ruby in Windows version.
@@ -10,15 +19,21 @@
 * Compiler extension support. [How to create a compiler extension?](https://github.com/oklai/koala/tree/master/src/app/templates/compiler)
 * Custom Language Pack support. [How to create a language pack?](https://github.com/oklai/koala/tree/master/src/app/templates/locales)
 
-#### 1.4.3 (2013-8-30)
+[Windows](https://www.amazon.com/clouddrive/share?s=qng8__f6Qywp1MHlIBSvzU), [Mac OS X](https://www.amazon.com/clouddrive/share?s=xOfhq6uUQWonsvM4wcYSBI), Linux: [32bit](https://www.amazon.com/clouddrive/share?s=83_IglXmQbkp-aZqlToP6A)/[64bit](https://www.amazon.com/clouddrive/share?s=Sbz6xXWtQwUskz98IX4DwE), Ubuntu: [32bit](https://www.amazon.com/clouddrive/share?s=8U4cNCa-TM4j0HXKdKADYg)/[64bit](https://www.amazon.com/clouddrive/share?s=HTIIYSB7ToAiTnmZwvVSYk)
+
+## 1.4.3
+2013-8-30
+
 * Fix bug [#41](https://github.com/oklai/koala/issues/41)
 * Fix the bug the parent file can not auto compile when some imported LESS/Sass files modified.
 
-#### 1.4.2 (2013-8-16)
+## 1.4.2
+2013-8-16
+
 * Fix bug: create compass project config error.
 * Settings windows: move "Using System Libs" to "Advanced".
 
-#### 1.4.1 2013-6-21
+## 1.4.1 2013-6-21
 * Fix bug: version 1.4.0 can't run.
 * New features: project settings, see the doc [here](https://github.com/oklai/koala/wiki/Using-project-settings).
 * Compass full supports.
@@ -29,10 +44,14 @@
 * Add Japanese language.
 * Improved UI.
 
-#### 1.3.1 (2013-6-3)
+## 1.3.1
+2013-6-3
+
 * Fix a bug: can't recognize files if forder has some file with the prefix "_".
 
-#### 1.3.0 (2013-5-23)
+## 1.3.0
+2013-5-23
+
 * New features: allowed to switch run LESS , Sass and others directly, if them already installed on user computer.
 * New features: increase the "open file" option in the context menu.
 * Set the default output path for the directory at the same level with the project directory under css/js directory, for example: ./less -> ./css.
@@ -41,16 +60,24 @@
 * UI improvements, tip refresh file list status.
 * Increase the version number.
 
-#### 1.0.2 (2013-4-28)
+## 1.0.2
+2013-4-28
+
 * Fix 1.0.1 version crash under proxy network environment.
 
-#### 1.0.1 (2013-4-24)
+## 1.0.1
+2013-4-24
+
 * Settings file dialog initial path for the project directory path.
 
-#### 1.0.1 beta2 (2013-4-18)
+## 1.0.1 beta2
+2013-4-18
+
 * Fix bug: to modify the file output path doesn't take effect immediately
 
-#### 1.0.1 beta1 (2013-4-17)
+## 1.0.1 beta1
+2013-4-17
+
 * Used by default of compass config.rb.
 * Multi-file operations, set outpath and delete function.
 * Support Add file into the current project.
diff --git a/README.md b/README.md
index 504e53f7..85008479 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ Koala is a GUI application for LESS, Sass and CoffeeScript compilation, to help
 [项目中文主页](http://koala-app.com/index-zh.html)
 
 ## Downloads 
-v2.0.0-beta release [Changelog](http://koala-app.com/#changelog)
+v2.0.0 release [Changelog](http://koala-app.com/#changelog)
 
 [Download](http://koala-app.com) 
 
diff --git a/src/app/scripts/compilers/package.json b/src/app/scripts/compilers/package.json
index 7f029324..e249e2a9 100644
--- a/src/app/scripts/compilers/package.json
+++ b/src/app/scripts/compilers/package.json
@@ -41,7 +41,7 @@
 				"type": "checkbox",
 				"name": "strictMath",
 				"display": "Strict Math",
-				"default": true
+				"default": false
 			},
 			{
 				"type": "checkbox",
@@ -92,7 +92,7 @@
 		// project settings file path
 		"projectSettings": "../../settings/koala-config-of-less.json",
 
-		"libraries": ["LESS@1.4.0"]
+		"libraries": ["LESS@1.4.2"]
 	},
 
 	// Sass Compiler
diff --git a/src/app/scripts/pages/main/filelist.js b/src/app/scripts/pages/main/filelist.js
index fc926770..d967e975 100644
--- a/src/app/scripts/pages/main/filelist.js
+++ b/src/app/scripts/pages/main/filelist.js
@@ -71,6 +71,7 @@ $('#typeNav li').click(function () {
 });
 
 //create selector
+var selectItemPrev = -1;
 $('#filelist').selectable({
     filter: 'li:visible',
     stop: function (event, ui) {
@@ -80,6 +81,15 @@ $('#filelist').selectable({
         } else {
             $('#extend').removeClass('show');
         }
+    },
+    selecting: function(e, ui) { // on select
+        var curr = $(ui.selecting.tagName, e.target).index(ui.selecting); // get selecting item index
+        if(e.shiftKey && selectItemPrev > -1) { // if shift key was pressed and there is previous - select them all
+            $(ui.selecting.tagName, e.target).slice(Math.min(selectItemPrev, curr), 1 + Math.max(selectItemPrev, curr)).addClass('ui-selected');
+            selectItemPrev = -1; // and reset prev
+        } else {
+            selectItemPrev = curr; // othervise just save prev
+        }
     }
 });
 
diff --git a/src/package.json b/src/package.json
index ed5babdf..73f933b4 100644
--- a/src/package.json
+++ b/src/package.json
@@ -2,7 +2,7 @@
 	"name": "Koala",
 	"main": "app/main.html",
 	"description": "Koala is a developer tool for LESS, Sass and CoffeeScript compilation.",
-	"version": "2.0.0-beta1",
+	"version": "2.0.0",
 	"maintainers":{
 		"name": "Ethan Lai",
 		"email": "lain.z.q@gmail.com",
@@ -21,9 +21,9 @@
 		{"name": "Ziad Khoury","web": "https://github.com/zaygraveyard"}
 	],
 	"window": {
-		"debug": true,
+		"debug": false,
 		"icon": "app/assets/img/koala.png",
-		"toolbar": true,
+		"toolbar": false,
 		"width": 900,
 		"height": 556,
 		"resizable": false,