@@ -88,7 +88,7 @@ Follow this [document](docs/en/guides/How-to-build.md).
# Contact Us
* Submit an [issue](https://github.com/apache/skywalking/issues)
* Mail list: **dev@skywalking.apache.org**. Mail to `dev-subscribe@skywalking.apache.org`, follow the reply to subscribe the mail list.
* Join `#skywalking` channel at [Apache Slack](https://join.slack.com/t/the-asf/shared_invite/enQtNDQ3OTEwNzE1MDg5LWY2NjkwMTEzMGI2ZTI1NzUzMDk0MzJmMWM1NWVmODg0MzBjNjAxYzUwMjIwNDI3MjlhZWRjNmNhOTM5NmIxNDk)
* Join `#skywalking` channel at [Apache Slack](https://join.slack.com/t/the-asf/shared_invite/enQtNzc2ODE3MjI1MDk1LTAyZGJmNTg1NWZhNmVmOWZjMjA2MGUyOGY4MjE5ZGUwOTQxY2Q3MDBmNTM5YTllNGU4M2QyMzQ4M2U4ZjQ5YmY). If the linke is not working, find the latest one at [Apache INFRA WIKI](https://cwiki.apache.org/confluence/display/INFRA/Slack+Guest+Invites).
* QQ Group: 392443393(2000/2000, not available), 901167865(available)
