Revert "Release Python 0.4.0 (#132)" (#133)

This reverts commit 970ed6d0a9cad88d33918a038ffb204dd9e18c2a.
diff --git a/docs/.vuepress/config.js b/docs/.vuepress/config.js
index 4e8d982..c9bbebb 100755
--- a/docs/.vuepress/config.js
+++ b/docs/.vuepress/config.js
@@ -32,7 +32,7 @@
             { text: 'Nginx LUA 0.3.0', link: "https://github.com/apache/skywalking-nginx-lua/tree/v0.3.0"},
             { text: 'CLI 0.4.0', link: "https://github.com/apache/skywalking-cli/tree/0.4.0"},
             { text: 'Kubernetes helm 4.0.0', link: "https://github.com/apache/skywalking-kubernetes/tree/v4.0.0"},
-            { text: 'Python Agent 0.4.0', link: "https://github.com/apache/skywalking-python/tree/v0.4.0"},
+            { text: 'Python Agent 0.3.0', link: "https://github.com/apache/skywalking-python/tree/v0.3.0"},
             { text: 'Client JS 0.2.0', link: "https://github.com/apache/skywalking-client-js/tree/v0.2.0"},
             { text: 'Cloud on Kubernetes 0.1.0', link: "https://github.com/apache/skywalking-swck/tree/0.1.0"},
           ], },
@@ -83,7 +83,7 @@
               { text: 'Nginx LUA 0.3.0', link: "https://github.com/apache/skywalking-nginx-lua/tree/v0.3.0"},
               { text: 'CLI 0.4.0', link: "https://github.com/apache/skywalking-cli/tree/0.4.0"},
               { text: 'Kubernetes helm 4.0.0', link: "https://github.com/apache/skywalking-kubernetes/tree/v4.0.0"},
-              { text: 'Python Agent 0.4.0', link: "https://github.com/apache/skywalking-python/tree/v0.4.0"},
+              { text: 'Python Agent 0.3.0', link: "https://github.com/apache/skywalking-python/tree/v0.3.0"},
               { text: 'Client JS 0.2.0', link: "https://github.com/apache/skywalking-client-js/tree/v0.2.0"},
               { text: 'Cloud on Kubernetes 0.1.0', link: "https://github.com/apache/skywalking-swck/tree/0.1.0"},
             ],
diff --git a/docs/README.md b/docs/README.md
index 32a382d..cb64c80 100755
--- a/docs/README.md
+++ b/docs/README.md
@@ -27,9 +27,6 @@
 news:
   title: Events & News
   content:
-  - header: SkyWalking Python 0.4.0 is released
-    content: Support Kafka reporter protocol between agent and OAP; Fix agent reconnecting bug and possible namespace conflicts with user codes.
-    time: Nov. 19th, 2020
   - header: SkyWalking Client JS 0.2.0 is released
     content: Fixed some bugs related to performance data report
     time: Nov. 17th, 2020
@@ -39,3 +36,6 @@
   - header: Welcome Jiapeng Liu as new committer
     content: Based on his continuous contributions, Jiapeng Liu (a.k.a [evanljp](https://github.com/evanljp)) has been voted as a new committer.
     time: Nov. 5th, 2020
+  - header: SkyWalking Kubernetes Helm Chart 4.0.0 is released
+    content: Allow overriding default configurations files; Unify usages of different SkyWalking Versions.
+    time: Nov. 3rd, 2020
diff --git a/docs/downloads/README.md b/docs/downloads/README.md
index a5d22f2..48e28f2 100755
--- a/docs/downloads/README.md
+++ b/docs/downloads/README.md
@@ -33,8 +33,8 @@
 ### SkyWalking Python
 | Date | Version| | Downloads |
 |:---:|:--:|:--:|:--:|
-| Nov. 19th, 2020 | 0.4.0 | Source code| [[src]](https://www.apache.org/dyn/closer.cgi/skywalking/python/0.4.0/skywalking-python-src-v0.4.0.tgz) [[asc]](https://downloads.apache.org/skywalking/python/0.4.0/skywalking-python-src-v0.4.0.tgz.asc) [[sha512]](https://downloads.apache.org/skywalking/python/0.4.0/skywalking-python-src-v0.4.0.tgz.sha512)|
-| | | Binary Distribution (MacOS, Linux, Windows)| [[Install via pip]](https://pypi.org/project/apache-skywalking/0.4.0/) |
+| Aug. 28th, 2020 | 0.3.0 | Source code| [[src]](https://www.apache.org/dyn/closer.cgi/skywalking/python/0.3.0/skywalking-python-src-v0.3.0.tgz) [[asc]](https://downloads.apache.org/skywalking/python/0.3.0/skywalking-python-src-v0.3.0.tgz.asc) [[sha512]](https://downloads.apache.org/skywalking/python/0.3.0/skywalking-python-src-v0.3.0.tgz.sha512)|
+| | | Binary Distribution (MacOS, Linux, Windows)| [[Install via pip]](https://pypi.org/project/apache-skywalking/0.3.0/) |
 
 ### SkyWalking Chart
 | Date | Version| | Downloads |
diff --git a/docs/events/README.md b/docs/events/README.md
index f3f33d6..c2a927d 100755
--- a/docs/events/README.md
+++ b/docs/events/README.md
@@ -1,13 +1,5 @@
 # SkyWalking Events
 
-## Release Apache SkyWalking Python 0.4.0
-###### Nov. 18th, 2020
-SkyWalking Python 0.4.0 is released. Go to [downloads](/downloads/) page to find release tars.
-- Feature: Support Kafka reporter protocol (#74)
-- BugFix: Move generated packages into skywalking namespace to avoid conflicts (#72)
-- BugFix: Agent cannot reconnect after server is down (#79)
-- Test: Mitigate unsafe yaml loading (#76)
-
 ## Release Apache SkyWalking Client JS 0.2.0
 ###### Nov. 17th, 2020
 SkyWalking Client JS 0.2.0 is released. Go to [downloads](/downloads/) page to find release tars.
diff --git a/docs/zh/README.md b/docs/zh/README.md
index ba83591..c20b898 100755
--- a/docs/zh/README.md
+++ b/docs/zh/README.md
@@ -28,9 +28,6 @@
 news:
   title: 事件 & 新闻
   content:
-  - header: SkyWalking Python 0.4.0 发布
-    content: 探针支持 Kafka 上报协议; 修复探针无法自动重连问题; 修复命名空间可能与用户代码冲突问题.
-    time: 2020 年 11 月 19 日
   - header: SkyWalking Client JS 0.2.0 发布
     content: 修复一些性能数据上报相关的 bug
     time: 2020 年 11 月 17 日
@@ -40,3 +37,6 @@
   - header: 欢迎刘嘉鹏成为新的committer
     content: 根据他长期的项目贡献,他被投票选举为项目的 committer
     time: 2020 年 11 月 5 日
+  - header: SkyWalking Kubernetes Helm Chart 4.0.0 发布
+    content: 支持自定义覆盖默认配置文件; 统一不同 SkyWalking 版本的使用方式;
+    time: 2020 年 11 月 3 日
diff --git a/docs/zh/downloads/README.md b/docs/zh/downloads/README.md
index 994b233..c0381af 100755
--- a/docs/zh/downloads/README.md
+++ b/docs/zh/downloads/README.md
@@ -31,8 +31,8 @@
 ### SkyWalking Python
 | 日期 | 版本 | | 下载 |
 |:---:|:--:|:--:|:--:|
-| Nov. 19th, 2020 | 0.4.0 | Source code| [[src]](https://www.apache.org/dyn/closer.cgi/skywalking/python/0.4.0/skywalking-python-src-v0.4.0.tgz) [[asc]](https://downloads.apache.org/skywalking/python/0.4.0/skywalking-python-src-v0.4.0.tgz.asc) [[sha512]](https://downloads.apache.org/skywalking/python/0.4.0/skywalking-python-src-v0.4.0.tgz.sha512)|
-| | | Binary Distribution (MacOS, Linux, Windows)| [[Install via pip]](https://pypi.org/project/apache-skywalking/0.4.0/) |
+| Aug. 28th, 2020 | 0.3.0 | Source code| [[src]](https://www.apache.org/dyn/closer.cgi/skywalking/python/0.3.0/skywalking-python-src-v0.3.0.tgz) [[asc]](https://downloads.apache.org/skywalking/python/0.3.0/skywalking-python-src-v0.3.0.tgz.asc) [[sha512]](https://downloads.apache.org/skywalking/python/0.3.0/skywalking-python-src-v0.3.0.tgz.sha512)|
+| | | Binary Distribution (MacOS, Linux, Windows)| [[Install via pip]](https://pypi.org/project/apache-skywalking/0.3.0/) |
 
 ### SkyWalking Chart
 | 日期 | 版本| | 下载 |
diff --git a/docs/zh/events/README.md b/docs/zh/events/README.md
index 4d3b007..b7fde67 100755
--- a/docs/zh/events/README.md
+++ b/docs/zh/events/README.md
@@ -1,13 +1,5 @@
 # SkyWalking 事件概要
 
-## Apache SkyWalking Python 0.4.0 发布
-###### 2020 年 11 月 19 日
-SkyWalking Python 0.4.0 发布. 前往 [下载页面](/downloads/) 查看如何使用.
-- Feature: 探针支持使用 Kafka 上报协议 (#74)
-- BugFix: 移动顶级包名, 避免可能与用户空间冲突 (#72)
-- BugFix: 修复探针 gRPC 上报协议无法自动重连的问题 (#79)
-- Test: YAML 安全加载 (#76)
-
 ## Release Apache SkyWalking Client JS 0.2.0
 ###### 2020年 11 月 17 日
 SkyWalking Client Js 0.2.0 发布. 前往 [下载页面](/downloads/) 查看如何使用.