diff --git a/README.md b/README.md
index ddea8f92..b89f7666 100644
--- a/README.md
+++ b/README.md
@@ -35,18 +35,29 @@ Drivers for Go's sql package which currently support database/sql includes:
 
 * MyMysql: [github.com/ziutek/mymysql/godrv](https://github.com/ziutek/mymysql/godrv)
 
-* SQLite: [github.com/mattn/go-sqlite3](https://github.com/mattn/go-sqlite3)
-
 * Postgres: [github.com/lib/pq](https://github.com/lib/pq)
 
+* Tidb: [github.com/pingcap/tidb](https://github.com/pingcap/tidb)
+
+* SQLite: [github.com/mattn/go-sqlite3](https://github.com/mattn/go-sqlite3)
+
 * MsSql: [github.com/denisenkom/go-mssqldb](https://github.com/denisenkom/go-mssqldb)
 
 * MsSql: [github.com/lunny/godbc](https://github.com/lunny/godbc)
 
 * Oracle: [github.com/mattn/go-oci8](https://github.com/mattn/go-oci8) (experiment)
 
+* ql: [github.com/cznic/ql](https://github.com/cznic/ql) (experiment)
+
 # Changelog
 
+* **v0.4.4**
+    * ql database expriment support
+    * tidb database expriment support
+    * sql.NullString and etc. field support
+    * select ForUpdate support
+    * many bugs fixed
+
 * **v0.4.3**
     * Json column type support
     * oracle expirement support
diff --git a/README_CN.md b/README_CN.md
index 8ab58ea5..d3954382 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -36,28 +36,34 @@ xorm是一个简单而强大的Go语言ORM库. 通过它可以使数据库操作
 
 * MyMysql: [github.com/ziutek/mymysql/godrv](https://github.com/ziutek/mymysql/godrv)
 
-* SQLite: [github.com/mattn/go-sqlite3](https://github.com/mattn/go-sqlite3)
-
 * Postgres: [github.com/lib/pq](https://github.com/lib/pq)
 
+* Tidb: [github.com/pingcap/tidb](https://github.com/pingcap/tidb)
+
+* SQLite: [github.com/mattn/go-sqlite3](https://github.com/mattn/go-sqlite3)
+
 * MsSql: [github.com/denisenkom/go-mssqldb](https://github.com/denisenkom/go-mssqldb)
 
 * MsSql: [github.com/lunny/godbc](https://github.com/lunny/godbc)
 
 * Oracle: [github.com/mattn/go-oci8](https://github.com/mattn/go-oci8) (试验性支持)
 
+* ql: [github.com/cznic/ql](https://github.com/cznic/ql) (试验性支持)
+
 ## 更新日志
 
+* **v0.4.4**
+    * Tidb 数据库支持
+    * QL 试验性支持
+    * sql.NullString支持
+    * ForUpdate 支持
+    * bug修正
+    
 * **v0.4.3**
     * Json 字段类型支持
     * oracle实验性支持
     * bug修正
 
-* **v0.4.2**
-    * 事物如未Rollback或Commit，在关闭时会自动Rollback
-    * Gonic 映射支持
-    * bug修正
-
 [更多更新日志...](https://github.com/go-xorm/manual-zh-CN/tree/master/chapter-16)
 
 ## 安装
diff --git a/VERSION b/VERSION
index 915f9513..3341336d 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-xorm v0.4.3.0824
+xorm v0.4.4.0924
diff --git a/xorm.go b/xorm.go
index 4f4d8938..791c1cbd 100644
--- a/xorm.go
+++ b/xorm.go
@@ -17,7 +17,7 @@ import (
 )
 
 const (
-	Version string = "0.4.3.0824"
+	Version string = "0.4.4.0824"
 )
 
 func regDrvsNDialects() bool {