diff --git a/docs/downloads/README.md b/docs/downloads/README.md
index e4f1a509..4b52d30 100755
--- a/docs/downloads/README.md
+++ b/docs/downloads/README.md
@@ -9,6 +9,12 @@
 ### SkyWalking APM
 | Date | Version| | Downloads |
 |:---:|:--:|:--:|:--:|
+| Dec. 27th, 2019 | 6.6.0 | Source code| [[src]](https://www.apache.org/dyn/closer.cgi/skywalking/6.6.0/apache-skywalking-apm-6.6.0-src.tgz) [[asc]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-6.6.0-src.tgz.asc) [[sha512]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-6.6.0-src.tgz.sha512)|
+| | | Binary Distribution (Windows)| [[zip]](https://www.apache.org/dyn/closer.cgi/skywalking/6.6.0/apache-skywalking-apm-6.6.0.zip) [[asc]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-6.6.0.zip.asc) [[sha512]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-6.6.0.zip.sha512)|
+| | | Binary Distribution for ElasticSearch 7 (Windows)| [[zip]](https://www.apache.org/dyn/closer.cgi/skywalking/6.6.0/apache-skywalking-apm-es7-6.6.0.zip) [[asc]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-es7-6.6.0.zip.asc) [[sha512]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-es7-6.6.0.zip.sha512)|
+| | | Binary Distribution (Linux) | [[tar]](https://www.apache.org/dyn/closer.cgi/skywalking/6.6.0/apache-skywalking-apm-6.6.0.tar.gz) [[asc]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-6.6.0.tar.gz.asc) [[sha512]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-6.6.0.tar.gz.sha512)|
+| | | Binary Distribution for ElasticSearch 7 (Linux) | [[tar]](https://www.apache.org/dyn/closer.cgi/skywalking/6.6.0/apache-skywalking-apm-es7-6.6.0.tar.gz) [[asc]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-es7-6.6.0.tar.gz.asc) [[sha512]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-es7-6.6.0.tar.gz.sha512)|
+| | | Documentation| [Documentation](https://github.com/apache/skywalking/blob/v6.6.0/docs/README.md) |
 | Nov. 15th, 2019 | 6.5.0 | Source code| [[src]](https://www.apache.org/dyn/closer.cgi/skywalking/6.5.0/apache-skywalking-apm-6.5.0-src.tgz) [[asc]](https://www.apache.org/dist/skywalking/6.5.0/apache-skywalking-apm-6.5.0-src.tgz.asc) [[sha512]](https://www.apache.org/dist/skywalking/6.5.0/apache-skywalking-apm-6.5.0-src.tgz.sha512)|
 | | | Binary Distribution (Windows)| [[zip]](https://www.apache.org/dyn/closer.cgi/skywalking/6.5.0/apache-skywalking-apm-6.5.0.zip) [[asc]](https://www.apache.org/dist/skywalking/6.5.0/apache-skywalking-apm-6.5.0.zip.asc) [[sha512]](https://www.apache.org/dist/skywalking/6.5.0/apache-skywalking-apm-6.5.0.zip.sha512)|
 | | | Binary Distribution (Linux) | [[tar]](https://www.apache.org/dyn/closer.cgi/skywalking/6.5.0/apache-skywalking-apm-6.5.0.tar.gz) [[asc]](https://www.apache.org/dist/skywalking/6.5.0/apache-skywalking-apm-6.5.0.tar.gz.asc) [[sha512]](https://www.apache.org/dist/skywalking/6.5.0/apache-skywalking-apm-6.5.0.tar.gz.sha512)|
@@ -24,6 +30,7 @@
 | Dec. 10th, 2019 | 0.1.0 | Source code| [[src]](https://www.apache.org/dyn/closer.cgi/skywalking/cli/0.1.0/skywalking-cli-0.1.0-src.tgz) [[asc]](https://www.apache.org/dist/skywalking/cli/0.1.0/skywalking-cli-0.1.0-src.tgz.asc) [[sha512]](https://www.apache.org/dist/skywalking/cli/0.1.0/skywalking-cli-0.1.0-src.tgz.sha512)|
 | | | Binary Distribution (MacOS, Linux, Windows)| [[tgz]](https://www.apache.org/dyn/closer.cgi/skywalking/cli/0.1.0/skywalking-cli-0.1.0-bin.tgz) [[asc]](https://www.apache.org/dist/skywalking/cli/0.1.0/skywalking-cli-0.1.0-bin.tgz.asc) [[sha512]](https://www.apache.org/dist/skywalking/cli/0.1.0/skywalking-cli-0.1.0-bin.tgz.sha512)|
 
+
 ### SkyWalking Chart
 | Date | Version| | Downloads |
 |:---:|:--:|:--:|:--:|
@@ -31,6 +38,7 @@
 | | | Binary Distribution (Kubernetes)| [[tgz]](https://www.apache.org/dyn/closer.cgi/skywalking/kubernetes/1.0.0/skywalking-1.0.0.tgz) [[asc]](https://www.apache.org/dyn/closer.cgi/skywalking/kubernetes/1.0.0/skywalking-1.0.0.tgz.asc) [[sha512]](https://www.apache.org/dyn/closer.cgi/skywalking/kubernetes/1.0.0/skywalking-1.0.0.tgz.sha512)|
 
 
+### All Releases
 * Find all SkyWalking releases in the [Archive repository](https://archive.apache.org/dist/skywalking/)
 
 ### Docker Images for convenience
diff --git a/docs/events/README.md b/docs/events/README.md
index 03baaf6..a084d06 100755
--- a/docs/events/README.md
+++ b/docs/events/README.md
@@ -1,5 +1,12 @@
 # SkyWalking Events
 
+## Release Apache SkyWalking APM 6.6.0
+###### Dec. 27th, 2019
+6.6.0 release. Go to [downloads](/downloads) page to find release tars.
+1. Service Instance dependency are available.
+2. Support ElasticSearch 7 as a storage option.
+3. Reduce the register load
+
 ## Release Apache SkyWalking Chart 1.0.0 for SkyWalking 6.5.0
 ###### Dec. 26th, 2019
 SkyWalking Chart 1.0.0 is released. Go to [downloads](/downloads) page to find release tars.
diff --git a/docs/zh/downloads/README.md b/docs/zh/downloads/README.md
index 40167a0..9f7b1dc 100755
--- a/docs/zh/downloads/README.md
+++ b/docs/zh/downloads/README.md
@@ -8,6 +8,12 @@
 ### SkyWalking APM
 | 日期 | 版本| | 下载 |
 |:---:|:--:|:--:|:--:|
+| Dec. 27th, 2019 | 6.6.0 | Source code| [[src]](https://www.apache.org/dyn/closer.cgi/skywalking/6.6.0/apache-skywalking-apm-6.6.0-src.tgz) [[asc]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-6.6.0-src.tgz.asc) [[sha512]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-6.6.0-src.tgz.sha512)|
+| | | Binary Distribution (Windows)| [[zip]](https://www.apache.org/dyn/closer.cgi/skywalking/6.6.0/apache-skywalking-apm-6.6.0.zip) [[asc]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-6.6.0.zip.asc) [[sha512]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-6.6.0.zip.sha512)|
+| | | Binary Distribution for ElasticSearch 7 (Windows)| [[zip]](https://www.apache.org/dyn/closer.cgi/skywalking/6.6.0/apache-skywalking-apm-es7-6.6.0.zip) [[asc]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-es7-6.6.0.zip.asc) [[sha512]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-es7-6.6.0.zip.sha512)|
+| | | Binary Distribution (Linux) | [[tar]](https://www.apache.org/dyn/closer.cgi/skywalking/6.6.0/apache-skywalking-apm-6.6.0.tar.gz) [[asc]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-6.6.0.tar.gz.asc) [[sha512]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-6.6.0.tar.gz.sha512)|
+| | | Binary Distribution for ElasticSearch 7 (Linux) | [[tar]](https://www.apache.org/dyn/closer.cgi/skywalking/6.6.0/apache-skywalking-apm-es7-6.6.0.tar.gz) [[asc]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-es7-6.6.0.tar.gz.asc) [[sha512]](https://www.apache.org/dist/skywalking/6.6.0/apache-skywalking-apm-es7-6.6.0.tar.gz.sha512)|
+| | | Documentation| [Documentation](https://github.com/apache/skywalking/blob/v6.6.0/docs/README.md) |
 | Nov. 15th, 2019 | 6.5.0 | Source code| [[src]](https://www.apache.org/dyn/closer.cgi/skywalking/6.5.0/apache-skywalking-apm-6.5.0-src.tgz) [[asc]](https://www.apache.org/dist/skywalking/6.5.0/apache-skywalking-apm-6.5.0-src.tgz.asc) [[sha512]](https://www.apache.org/dist/skywalking/6.5.0/apache-skywalking-apm-6.5.0-src.tgz.sha512)|
 | | | Binary Distribution (Windows)| [[zip]](https://www.apache.org/dyn/closer.cgi/skywalking/6.5.0/apache-skywalking-apm-6.5.0.zip) [[asc]](https://www.apache.org/dist/skywalking/6.5.0/apache-skywalking-apm-6.5.0.zip.asc) [[sha512]](https://www.apache.org/dist/skywalking/6.5.0/apache-skywalking-apm-6.5.0.zip.sha512)|
 | | | Binary Distribution (Linux) | [[tar]](https://www.apache.org/dyn/closer.cgi/skywalking/6.5.0/apache-skywalking-apm-6.5.0.tar.gz) [[asc]](https://www.apache.org/dist/skywalking/6.5.0/apache-skywalking-apm-6.5.0.tar.gz.asc) [[sha512]](https://www.apache.org/dist/skywalking/6.5.0/apache-skywalking-apm-6.5.0.tar.gz.sha512)|
@@ -30,6 +36,7 @@
 | | | Binary Distribution (Kubernetes)| [[tgz]](https://www.apache.org/dyn/closer.cgi/skywalking/kubernetes/1.0.0/skywalking-1.0.0.tgz) [[asc]](https://www.apache.org/dyn/closer.cgi/skywalking/kubernetes/1.0.0/skywalking-1.0.0.tgz.asc) [[sha512]](https://www.apache.org/dyn/closer.cgi/skywalking/kubernetes/1.0.0/skywalking-1.0.0.tgz.sha512)|
 
 
+### 所有历史版本
 * 可以在[归档库](https://archive.apache.org/dist/skywalking/)中，找到SkyWalking所有的历史发布版本
 
 ## Docker 镜像
diff --git a/docs/zh/events/README.md b/docs/zh/events/README.md
index a005759..e70533b 100755
--- a/docs/zh/events/README.md
+++ b/docs/zh/events/README.md
@@ -1,5 +1,12 @@
 # SkyWalking 事件概要
 
+## SkyWalking 6.6.0 发布
+###### 2019年12月27日
+Apache SkyWalking 6.6.0发布。跳转到 [下载](/downloads) 页面查找发布版本。
+1. 新增服务实例依赖
+2. 可以选择ElasticSearch7 作为存储
+3. 降低注册压力
+
 ## SkyWalking Chart 1.0.0 发布（SkyWalking 6.5.0）
 ###### Dec. 26th, 2019
 SkyWalking Chart 1.0.0 发布。 请到[下载页面](/downloads)查找发行版本。