diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7a662656..9837c29d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,7 +12,7 @@
 #
 cmake_minimum_required(VERSION 3.8) # c++ 17
 
-project(coroutine LANGUAGES CXX VERSION 1.4.2)
+project(coroutine LANGUAGES CXX VERSION 1.4.3)
 
 # import cmake code snippets. see `cmake/`
 list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
diff --git a/ReadMe.md b/ReadMe.md
index 356780bf..66775bc2 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -16,14 +16,12 @@ C++ Coroutine in Action.
 
 In that perspective, the library will be maintained as small as possible. Have fun with them. **And try your own coroutines !** 
 
-### Signpost
+## Developer Note
 
 * Start with the [wiki](https://github.com/luncliff/coroutine/wiki).
   You will visit the [test/](./test/) and [interface/](./interface/coroutine) folder while reading the docs.
 * This repository has some custom implementation for the C++ Coroutine spec in the [`<coroutine/frame.h>`](./interface/coroutine/frame.h)
 
-## Developer Note
-
 ### Architecture
 
 **This library is for x64**.
@@ -50,7 +48,7 @@ If there is a collision(build issue), please make an issue in this repo so I can
 #include <coroutine/frame.h>
 ```
 
-Generator and async generator
+Generator and async generator. Notice that the async generator is experimental. If you are curious with the concept, reference [the kirkshoop's repo](https://github.com/kirkshoop/await).
 
 ```c++
 #include <coroutine/yield.hpp>  // enumerable<T> & sequence<T>
@@ -59,20 +57,23 @@ Generator and async generator
 Utility types are in the following headers
 
 ```c++
-#include <coroutine/return.h> // return type examples for convenience
-#include <coroutine/concrt.h> // concurrency utilities over system API
+#include <coroutine/return.h> // return type for resumable functions
+#include <coroutine/concrt.h> // concurrency utilities
 ```
 
-Go language style channel to deliver data between coroutines. Supports awaitable read/write and select operation are possible. But it is slightly differnt from that of Go language.
+Go language style channel to deliver data between coroutines. It Supports awaitable read/write and select operation are possible.
+
+But it is slightly differnt from that of the Go language because we don't have a built-in scheduler in C++. Furthermore Goroutine is quite different from the C++ coroutine.
+It may not a necessary feature since there are so much of the channel implementation, but I'm sure **breakpointing** this one will **train** you.
 
 ```c++
-#include <coroutine/channel.hpp>  // channel<T, Lockable>
+#include <coroutine/channel.hpp>  // channel<T> with Lockable
 ```
 
-Network Asnyc I/O and some helper functions are placed in one header.
+Awaitable socket operations using system API are also available. I used `epoll`, `kqueue` and Overlapped I/O of the Windows.
 
 ```c++
-#include <coroutine/net.h>      // async i/o for sockets
+#include <coroutine/net.h>  // Awaitable I/O operations and some helpers
 ```
 
 ## How To
@@ -87,7 +88,7 @@ Create an issue if you think another configuration is required.
   * Visual Studio 2017 (CMake)
   * Ubuntu 16.04 + Clang 6.0
   * Mac OS + AppleClang
-  * Windows + Clang-cl
+  * Windows + Clang-cl (LLVM 8)
 * [`.travis.yml`](./.travis.yml)
   * Mac OS + AppleClang
   * Ubuntu 16.04 + Clang 7
diff --git a/appveyor.yml b/appveyor.yml
index 5ce6f2b2..302cae30 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -65,7 +65,8 @@ for:
           compiler: clang
     install:
       - ps: Write-Host $env:APPVEYOR_BUILD_FOLDER $env:PLATFORM $env:CONFIGURATION 
-      - ps: choco install --no-progress ninja   # Download Ninja with chocolaty package manager
+      - ps: choco install --yes --no-progress ninja   # Download Ninja with chocolaty package manager
+      - ps: choco install --force --yes --no-progress cmake
       - ps: choco info    llvm    # LLVM is already installed. So just show the version info
     before_build:
       - ps: clang-cl --version # <-- cl.exe for clang
diff --git a/build.gradle b/build.gradle
index 881e92e5..71433833 100644
--- a/build.gradle
+++ b/build.gradle
@@ -44,8 +44,8 @@ android {
         targetSdkVersion 27
 
         // Follow native code's verson
-        versionCode 142
-        versionName "1.4.2"
+        versionCode 143
+        versionName "1.4.3"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
 
         // External Native build: CMake