diff --git a/CHANGES b/CHANGES
--- a/CHANGES
+++ b/CHANGES
@@ -52,4 +52,25 @@
    * color picker menu and toolbar button 
    * experimental smooth scrolling support 
    * rendering engine improved
- 
+
+0.2: 24 Mar 2013
+   * hoodle data format updated. now hoodle document has a unique id.  
+   * linking between documents implemented 
+   * vertical space inserting tool implemented
+   * a widget introduced for panning and zooming 
+   * drag and drop linking implemented 
+   * drag and drop image embedding implemented 
+   * poppler pdf support is mandatory 
+   * pdf can be embedded in a file
+   * toolbox ui reflects current hoodle state more correctly
+   * slimmer select box design
+   * several rendering glitches fixed 
+
+0.2.0: 8 Apr 2013
+   * selected group of item can be transformed to a link
+   * link to external URL 
+   * when drag-and-drop link, it automatically transform currently selected item to the link
+   * drag and drop URL as a link (from address bar in web browser, such as firefox or chromium )   
+   * single image selection using wacom side button (convenient when overlapped images) 
+   * grey out save button when reading a file at first
+   * white-out bug fix when opening multiple pdf files 
diff --git a/hoodle.cabal b/hoodle.cabal
--- a/hoodle.cabal
+++ b/hoodle.cabal
@@ -1,5 +1,5 @@
 Name:		hoodle
-Version:	0.2
+Version:	0.2.0
 Synopsis:	Executable for hoodle
 Description: 	Hoodle is a pen notetaking program written in haskell. 
 Homepage:       http://ianwookim.org/hoodle
@@ -24,7 +24,7 @@
   Build-Depends: 
                  base>4, 
                  cmdargs >= 0.7, 
-                 hoodle-core >= 0.9.999, 
+                 hoodle-core == 0.11, 
                  hoodle 
 
 Library
@@ -39,7 +39,7 @@
                    cmdargs >= 0.7,
                    configurator == 0.2.*,
                    dyre >= 0.8.11, 
-                   hoodle-core == 0.10
+                   hoodle-core == 0.11 
   Exposed-Modules: 
                    Hoodle.ProgType
                    Hoodle.Job