diff --git a/README.md b/README.md
index 775376e..847208f 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# notification_notification_cangjie_wrapper
+# notification_notification_cangjie_wrapper(beta feature)
 
 ## Introduction
 
diff --git a/README_zh.md b/README_zh.md
index 9dbc0a1..22e8988 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -1,4 +1,4 @@
-# 事件通知仓颉封装
+# 事件通知仓颉封装（beta特性）
 
 ## 简介
 
diff --git a/ohos/common_event_data/BUILD.gn b/ohos/common_event_data/BUILD.gn
index ab02d9d..6fab505 100644
--- a/ohos/common_event_data/BUILD.gn
+++ b/ohos/common_event_data/BUILD.gn
@@ -11,6 +11,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 import("//build/ohos.gni")
 import("//build/templates/cangjie/cjc.gni")
 
diff --git a/ohos/common_event_data/common_event_data.cj b/ohos/common_event_data/common_event_data.cj
index 3fe0cf0..9dfbc78 100644
--- a/ohos/common_event_data/common_event_data.cj
+++ b/ohos/common_event_data/common_event_data.cj
@@ -13,6 +13,8 @@
  * limitations under the License.
  */
 
+// The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 package ohos.common_event_data
 
 import std.collection.HashMap
diff --git a/ohos/common_event_manager/BUILD.gn b/ohos/common_event_manager/BUILD.gn
index dbe3a81..3d9f7b3 100644
--- a/ohos/common_event_manager/BUILD.gn
+++ b/ohos/common_event_manager/BUILD.gn
@@ -11,6 +11,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 import("//build/ohos.gni")
 import("//build/templates/cangjie/cjc.gni")
 
diff --git a/ohos/common_event_manager/common_event_manager.cj b/ohos/common_event_manager/common_event_manager.cj
index 14891cb..c2757e8 100644
--- a/ohos/common_event_manager/common_event_manager.cj
+++ b/ohos/common_event_manager/common_event_manager.cj
@@ -13,6 +13,8 @@
  * limitations under the License.
  */
 
+// The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 package ohos.common_event_manager
 
 import ohos.labels.APILevel
diff --git a/ohos/common_event_manager/common_event_manager_errors.cj b/ohos/common_event_manager/common_event_manager_errors.cj
index a762e51..a680032 100644
--- a/ohos/common_event_manager/common_event_manager_errors.cj
+++ b/ohos/common_event_manager/common_event_manager_errors.cj
@@ -13,6 +13,8 @@
  * limitations under the License.
  */
 
+// The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 package ohos.common_event_manager
 
 import ohos.business_exception.{BusinessException, getUniversalErrorMsg}
diff --git a/ohos/common_event_manager/common_event_manager_ffi.cj b/ohos/common_event_manager/common_event_manager_ffi.cj
index 85b748f..c076bf0 100644
--- a/ohos/common_event_manager/common_event_manager_ffi.cj
+++ b/ohos/common_event_manager/common_event_manager_ffi.cj
@@ -13,6 +13,8 @@
  * limitations under the License.
  */
 
+// The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 package ohos.common_event_manager
 
 import ohos.common_event_publish_data.CCommonEventPublishData
diff --git a/ohos/common_event_manager/common_event_manager_utils.cj b/ohos/common_event_manager/common_event_manager_utils.cj
index 3e2e7bc..8f38aed 100644
--- a/ohos/common_event_manager/common_event_manager_utils.cj
+++ b/ohos/common_event_manager/common_event_manager_utils.cj
@@ -13,6 +13,8 @@
  * limitations under the License.
  */
 
+// The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 package ohos.common_event_manager
 
 import ohos.hilog.HilogChannel
diff --git a/ohos/common_event_manager/support.cj b/ohos/common_event_manager/support.cj
index 1444b65..d476d49 100644
--- a/ohos/common_event_manager/support.cj
+++ b/ohos/common_event_manager/support.cj
@@ -13,6 +13,8 @@
  * limitations under the License.
  */
 
+// The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 package ohos.common_event_manager
 
 import ohos.labels.APILevel
diff --git a/ohos/common_event_publish_data/BUILD.gn b/ohos/common_event_publish_data/BUILD.gn
index c289b21..1085961 100644
--- a/ohos/common_event_publish_data/BUILD.gn
+++ b/ohos/common_event_publish_data/BUILD.gn
@@ -11,6 +11,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 import("//build/ohos.gni")
 import("//build/templates/cangjie/cjc.gni")
 
diff --git a/ohos/common_event_publish_data/common_event_publish_data.cj b/ohos/common_event_publish_data/common_event_publish_data.cj
index c8409d4..158b598 100644
--- a/ohos/common_event_publish_data/common_event_publish_data.cj
+++ b/ohos/common_event_publish_data/common_event_publish_data.cj
@@ -13,6 +13,8 @@
  * limitations under the License.
  */
 
+// The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 package ohos.common_event_publish_data
 
 import std.collection.HashMap
diff --git a/ohos/common_event_subscribe_info/BUILD.gn b/ohos/common_event_subscribe_info/BUILD.gn
index ffdc8ab..0c5d1b2 100644
--- a/ohos/common_event_subscribe_info/BUILD.gn
+++ b/ohos/common_event_subscribe_info/BUILD.gn
@@ -11,6 +11,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 import("//build/ohos.gni")
 import("//build/templates/cangjie/cjc.gni")
 
diff --git a/ohos/common_event_subscribe_info/common_event_subscribe_info.cj b/ohos/common_event_subscribe_info/common_event_subscribe_info.cj
index bb1b582..679015c 100644
--- a/ohos/common_event_subscribe_info/common_event_subscribe_info.cj
+++ b/ohos/common_event_subscribe_info/common_event_subscribe_info.cj
@@ -13,6 +13,8 @@
  * limitations under the License.
  */
 
+// The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 package ohos.common_event_subscribe_info
 
 import ohos.ffi.*
diff --git a/ohos/common_event_subscriber/BUILD.gn b/ohos/common_event_subscriber/BUILD.gn
index 9ed2788..84fb560 100644
--- a/ohos/common_event_subscriber/BUILD.gn
+++ b/ohos/common_event_subscriber/BUILD.gn
@@ -11,6 +11,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 import("//build/ohos.gni")
 import("//build/templates/cangjie/cjc.gni")
 
diff --git a/ohos/common_event_subscriber/common_event_subscriber.cj b/ohos/common_event_subscriber/common_event_subscriber.cj
index e59662b..1c98995 100644
--- a/ohos/common_event_subscriber/common_event_subscriber.cj
+++ b/ohos/common_event_subscriber/common_event_subscriber.cj
@@ -13,6 +13,8 @@
  * limitations under the License.
  */
 
+// The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 package ohos.common_event_subscriber
 
 import ohos.labels.APILevel
diff --git a/ohos/common_event_subscriber/common_event_subscriber_ffi.cj b/ohos/common_event_subscriber/common_event_subscriber_ffi.cj
index a8a5df8..5b7b8bd 100644
--- a/ohos/common_event_subscriber/common_event_subscriber_ffi.cj
+++ b/ohos/common_event_subscriber/common_event_subscriber_ffi.cj
@@ -13,6 +13,8 @@
  * limitations under the License.
  */
 
+// The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 package ohos.common_event_subscriber
 
 import ohos.ffi.{RetDataI32, RetDataCString, RetDataBool, RetDataI64}
diff --git a/ohos/value_type/BUILD.gn b/ohos/value_type/BUILD.gn
index 92978df..a298f9a 100644
--- a/ohos/value_type/BUILD.gn
+++ b/ohos/value_type/BUILD.gn
@@ -11,6 +11,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 import("//build/ohos.gni")
 import("//build/templates/cangjie/cjc.gni")
 
diff --git a/ohos/value_type/parameters.cj b/ohos/value_type/parameters.cj
index ca7864e..4505748 100644
--- a/ohos/value_type/parameters.cj
+++ b/ohos/value_type/parameters.cj
@@ -13,6 +13,8 @@
  * limitations under the License.
  */
 
+// The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 package ohos.value_type
 
 import ohos.ffi.safeMalloc
diff --git a/ohos/value_type/value_type.cj b/ohos/value_type/value_type.cj
index 53522fc..89ba9e0 100644
--- a/ohos/value_type/value_type.cj
+++ b/ohos/value_type/value_type.cj
@@ -13,6 +13,8 @@
  * limitations under the License.
  */
 
+// The Cangjie API is in Beta. For details on its capabilities and limitations, please refer to the README file.
+
 package ohos.value_type
 
 import ohos.labels.APILevel