diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3ea5b6c7e0..c28225513b 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,7 +14,7 @@ set(DROGON_MINOR_VERSION 0)
 set(DROGON_PATCH_VERSION 0)
 set(DROGON_VERSION
     ${DROGON_MAJOR_VERSION}.${DROGON_MINOR_VERSION}.${DROGON_PATCH_VERSION})
-set(DROGON_VERSION_STRING "${DROGON_VERSION}.beta18")
+set(DROGON_VERSION_STRING "${DROGON_VERSION}.beta19")
 
 # Offer the user the choice of overriding the installation directories
 set(INSTALL_LIB_DIR lib CACHE PATH "Installation directory for libraries")
diff --git a/ChangeLog.md b/ChangeLog.md
index 21fe60e649..4cbc42fbc9 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -4,6 +4,38 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+## [1.0.0-beta19] - 2020-07-16
+
+### API change list
+
+- Add a method to disable unicode escaping in json string.
+
+- Add a timeout parameter when sending HTTP requests.
+
+- Add the getJsonError method.
+
+### Changed
+
+- Remove the restriction on the location of layout tags in views.
+
+- Add a way to set the character set when creating DbClient objects.
+
+- Make `GET` as the only method for accessing static files.
+
+- Modify the 404 pages generator.
+
+- Modify the DbClient class.
+
+- Optimize the HttpResponse class.
+
+### Fixed
+
+- Properly handle chunked encoding requests.
+
+- Destroy DNS resolver of HttpClient in the correct thread.
+
+- Add the header <cctype> to resolve build errors in VS2017.
+
 ## [1.0.0-beta18] - 2020-06-14
 
 ### API change list
@@ -426,7 +458,9 @@ All notable changes to this project will be documented in this file.
 
 ## [1.0.0-beta1] - 2019-06-11
 
-[Unreleased]: https://github.com/an-tao/drogon/compare/v1.0.0-beta18...HEAD
+[Unreleased]: https://github.com/an-tao/drogon/compare/v1.0.0-beta19...HEAD
+
+[1.0.0-beta19]: https://github.com/an-tao/drogon/compare/v1.0.0-beta18...v1.0.0-beta19
 
 [1.0.0-beta18]: https://github.com/an-tao/drogon/compare/v1.0.0-beta17...v1.0.0-beta18
 
diff --git a/README.md b/README.md
index f5830a30a7..324ed92e5c 100755
--- a/README.md
+++ b/README.md
@@ -7,12 +7,13 @@
 [![Join the chat at https://gitter.im/drogon-web/community](https://badges.gitter.im/drogon-web/community.svg)](https://gitter.im/drogon-web/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Docker image](https://img.shields.io/badge/Docker-image-blue.svg)](https://cloud.docker.com/u/drogonframework/repository/docker/drogonframework/drogon)
 
+English | [简体中文](./README.zh-CN.md)
 ### Overview
 **Drogon** is a C++14/17-based HTTP application framework. Drogon can be used to easily build various types of web application server programs using C++. **Drogon** is the name of a dragon in the American TV series "Game of Thrones" that I really like.
 
 Drogon is a cross-platform framework, It supports Linux, macOS, FreeBSD, and Windows. Its main features are as follows:
 
-* Use a non-blocking I/O network lib based on epoll (kqueue under macOS/FreeBSD) to provide high-concurrency, high-performance network IO, please visit the [benchmarks](https://github.com/an-tao/drogon/wiki/13-Benchmarks) page and [TFB Live Results](https://tfb-status.techempower.com/) for more details;
+* Use a non-blocking I/O network lib based on epoll (kqueue under macOS/FreeBSD) to provide high-concurrency, high-performance network IO, please visit the [TFB Tests Results](https://www.techempower.com/benchmarks/#section=data-r19&hw=ph&test=composite) for more details;
 * Provide a completely asynchronous programming mode;
 * Support Http1.0/1.1 (server side and client side);
 * Based on template, a simple reflection mechanism is implemented to completely decouple the main program framework, controllers and views.
diff --git a/README.zh-CN.md b/README.zh-CN.md
index 9994845ecf..b093ff658c 100755
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -6,12 +6,14 @@
 [![Join the chat at https://gitter.im/drogon-web/community](https://badges.gitter.im/drogon-web/community.svg)](https://gitter.im/drogon-web/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Docker image](https://img.shields.io/badge/Docker-image-blue.svg)](https://cloud.docker.com/u/drogonframework/repository/docker/drogonframework/drogon)
 
+[English](./README.md) | 简体中文
+
 **Drogon**是一个基于C++14/17的Http应用框架，使用Drogon可以方便的使用C++构建各种类型的Web应用服务端程序。
 本版本库是github上[Drogon工程](https://github.com/an-tao/drogon)的镜像库。**Drogon**是作者非常喜欢的美剧《权力的游戏》中的一条龙的名字(汉译作卓耿)，和龙有关但并不是dragon的误写，为了不至于引起不必要的误会这里说明一下。
 
 Drogon是一个跨平台框架，它支持Linux，也支持macOS、FreeBSD，和Windows。它的主要特点如下：
 
-* 网络层使用基于epoll(macOS/FreeBSD下是kqueue)的非阻塞IO框架，提供高并发、高性能的网络IO。详细请见[性能测试](https://github.com/an-tao/drogon/wiki/13-%E6%80%A7%E8%83%BD%E6%B5%8B%E8%AF%95)和[TFB Live Results](https://tfb-status.techempower.com/)；
+* 网络层使用基于epoll(macOS/FreeBSD下是kqueue)的非阻塞IO框架，提供高并发、高性能的网络IO。详细请见[TFB Tests Results](https://www.techempower.com/benchmarks/#section=data-r19&hw=ph&test=composite)；
 * 全异步编程模式；
 * 支持Http1.0/1.1(server端和client端)；
 * 基于template实现了简单的反射机制，使主程序框架、控制器(controller)和视图(view)完全解耦；
@@ -187,3 +189,7 @@ class User : public drogon::HttpController<User>
 ## 贡献方式
 
 欢迎您的贡献。 请阅读[贡献指南](CONTRIBUTING.md)以获取更多的信息。
+
+## QQ交流群：1137909452
+
+欢迎交流探讨。
\ No newline at end of file
diff --git a/trantor b/trantor
index d814acd672..13c659a7e0 160000
--- a/trantor
+++ b/trantor
@@ -1 +1 @@
-Subproject commit d814acd672516d60d8f8377d175f2ba319b05719
+Subproject commit 13c659a7e0ae2ae2e96f50f726d77c483b861dd8