Add change log
diff --git a/CHANGES.md b/CHANGES.md
index e0c9d46..a599fc5 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -6,13 +6,8 @@
------------------
#### OAP Server
-* Fix wrong (de)serializer of ElasticSearch client for OpenSearch storage.
-* Fix that traces query with tags will report error.
-* Replace e2e simple cases to e2e-v2.
-* Fix endpoint dependency breaking.
#### UI
-* Delete duplicate calls for endpoint dependency.
#### Documentation
diff --git a/changes/changes-8.8.1.md b/changes/changes-8.8.1.md
new file mode 100644
index 0000000..d30cb5c
--- /dev/null
+++ b/changes/changes-8.8.1.md
@@ -0,0 +1,23 @@
+Changes by Version
+==================
+Release Notes.
+
+8.8.1
+------------------
+
+#### OAP Server
+* Fix wrong (de)serializer of ElasticSearch client for OpenSearch storage.
+* Fix that traces query with tags will report error.
+* Replace e2e simple cases to e2e-v2.
+* Fix endpoint dependency breaking.
+
+#### UI
+* Delete duplicate calls for endpoint dependency.
+
+#### Documentation
+
+
+All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/101?closed=1)
+
+------------------
+Find change logs of all versions [here](changes).
