diff --git a/CHANGELOG.md b/CHANGELOG.md
index 24ce8cb..a882900 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # ChangeLog - Aliyun OSS SDK for Go
 
+## 版本号：v3.0.2 日期：2023-12-28
+### 变更内容
+- 增加：presign 支持 oss v4签名规则
+- 增加：credentials provider supports GetCredentialsE interface
+- 修改：fix GetReaderLen
+
 ## 版本号：v2.2.10 日期：2023-10-30
 ### 变更内容
 - 增加：support return callback body.
diff --git a/README-CN.md b/README-CN.md
index 2e97335..0cebd78 100644
--- a/README-CN.md
+++ b/README-CN.md
@@ -13,7 +13,7 @@
 > - 使用此SDK，用户可以方便地在任何应用、任何时间、任何地点上传，下载和管理数据。
 
 ## 版本
-> - Current version: v2.2.10
+> - Current version: v3.0.2
 
 ## 运行环境
 > - Go 1.5及以上。
diff --git a/README.md b/README.md
index a6c92d9..4e2d324 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@
 > - With this SDK, you can upload, download and manage data on any app anytime and anywhere conveniently. 
 
 ## Version
-> - Current version: v2.2.10
+> - Current version: v3.0.2
 
 ## Running Environment
 > - Go 1.5 or above. 
diff --git a/oss/const.go b/oss/const.go
index f438d20..400f7cf 100644
--- a/oss/const.go
+++ b/oss/const.go
@@ -248,7 +248,7 @@ const (
 
 	DefaultContentSha256 = "UNSIGNED-PAYLOAD" // for v4 signature
 
-	Version = "v2.2.10" // Go SDK version
+	Version = "v3.0.2" // Go SDK version
 )
 
 // FrameType