diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3b0589ed..bc408be2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,14 @@ Antonio Ramirez.
 
 ## YiiBooster latest development alpha  
 
+## YiiBooster version 4.0.0-alpha
+- upgrade the bootstrap version to 3.1.1
+- upgrade and fix many widgets to work with bootstrap 3.1.1
+- many widgets still not ported
+- code structure is not final yet 
+- working widgets (TbAlert, TbBadge, TbButton, TbJumbotron, TbLabel, TbProgressBar, TbEditableField, TbEditableColumn, TbEditableDetailView, TbHighChart, TbActiveForm, TbPager)
+- not all TbActiveForm controls are ported yet
+
 ## YiiBooster version 3.0.0
 - **(fix)** TbExtendedGridView - TbProgress inside cell css fix - #448
 - **(enh)** TbGridView - try to register TbEditableColumn scripts for empty providers - works only with CActiveDataProvider - #526 
diff --git a/build.properties b/build.properties
index 24332beb..300a98cc 100644
--- a/build.properties
+++ b/build.properties
@@ -15,5 +15,5 @@ path.reports=./reports
 
 # Current version under which project will be distributed.
 # Versioning is being made according to Semantic Versioning specification at http://semver.org/
-project.version=3.0.0
+project.version=4.0.0-alpha