## 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)