Prepare to release rocketmq-client-cpp 1.2.3
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+---
+title: "Release Notes - Apache RocketMQ Client CPP- Version 1.2.3"
+categories:
+ - Release_Notes
+tags:
+ - Release_Notes
+ - RocketMQ
+ - Version
+---
+
+Below is a summary of the issues addressed in the 1.2.3 release of RocketMQ Client CPP. For full documentation of the release, a guide to get started, please refer to [Quick Start](https://github.com/apache/rocketmq-client-cpp).
+
+
+<h2> Download the 4.5.2 release</h2>
+
+* Source: [rocketmq-client-cpp-1.2.3-source-release.tar.gz](https://www.apache.org/dyn/closer.cgi?path=rocketmq/rocketmq-client-cpp/1.2.3/rocketmq-client-cpp-1.2.3-source-release.tar.gz) [[PGP](https://www.apache.org/dist/rocketmq/rocketmq-client-cpp/1.2.3/rocketmq-client-cpp-1.2.3-source-release.tar.gz.asc)] [[SHA512](https://www.apache.org/dist/rocketmq/rocketmq-client-cpp/1.2.3/rocketmq-client-cpp-1.2.3-source-release.tar.gz.sha512)]
+* Binary: [rocketmq-client-cpp-1.2.3-bin-release.tar.gz](https://www.apache.org/dyn/closer.cgi?path=rocketmq/rocketmq-client-cpp/1.2.3/rocketmq-client-cpp-1.2.3-bin-release.tar.gz) [[PGP](https://www.apache.org/dist/rocketmq/rocketmq-client-cpp/1.2.3/rocketmq-client-cpp-1.2.3-bin-release.tar.gz.asc)] [[SHA512](https://www.apache.org/dist/rocketmq/rocketmq-client-cpp/1.2.3/rocketmq-client-cpp-1.2.3-bin-release.tar.gz.sha512)]
+
+## Improvement
+<li>[<a href='https://github.com/apache/rocketmq-client-cpp/pull/139'>ISSUE-139</a>] - Export send batch messages api in c style.
+</li>
+<li>[<a href='https://github.com/apache/rocketmq-client-cpp/pull/154'>ISSUE-154</a>] - Support transaction message.
+</li>
+<li>[<a href='https://github.com/apache/rocketmq-client-cpp/pull/138'>ISSUE-138</a>] - Support getting error code and error message when C api returns.
+</li>
+<li>[<a href='https://github.com/apache/rocketmq-client-cpp/pull/140'>ISSUE-140</a>] - Fix build warnings in namespace util.
+</li>
+<li>[<a href='https://github.com/apache/rocketmq-client-cpp/pull/143'>ISSUE-143</a>] - Replace unsigned int by auto to save string::size_type..
+</li>
+<li>[<a href='https://github.com/apache/rocketmq-client-cpp/pull/157'>ISSUE-157</a>] - Remove two unused functionalities, removeDropedPullRequestOpaque and deleteOpaqueForDropPullRequest.
+</li>
+<li>[<a href='https://github.com/apache/rocketmq-client-cpp/pull/159'>ISSUE-159</a>] - Update unit test case for response future.
+</li>
+<li>[<a href='https://github.com/apache/rocketmq-client-cpp/pull/160'>ISSUE-160</a>] - Optimize BatchMessage detection in producer send kernel.
+</li>
+<li>[<a href='https://github.com/apache/rocketmq-client-cpp/pull/127'>ISSUE-127</a>] - Support muti-threads compile in build.sh.
+</li>
+<li>[<a href='https://github.com/apache/rocketmq-client-cpp/pull/167'>ISSUE-167</a>] - Support 64bit boost library on windows.
+</li>
+<li>[<a href='https://github.com/apache/rocketmq-client-cpp/pull/172'>ISSUE-172</a>] - Remove useless code and fix compile warnings.
+</li>
+<li>[<a href='https://github.com/apache/rocketmq-client-cpp/pull/179'>ISSUE-179</a>] - Modify deploy shell to package license and notice file.
+</li>
+</ul>
+
+## Bug
+<ul>
+<li>[<a href='https://github.com/apache/rocketmq-client-cpp/pull/59'>ISSUE-59</a>] - Fix infinite loop on tcp transport connect.
+</li>
+<li>[<a href='https://github.com/apache/rocketmq-client-cpp/pull/152'>ISSUE-152</a>] - Resolve the bug without encode batch flag when send batch message.
+</li>
+<li>[<a href='https://github.com/apache/rocketmq-client-cpp/pull/156'>ISSUE-156</a>] - Use io-thread pool and work-thread pool in network callback to resolve deadlock in block-request.
+</li>
+<li>[<a href='https://github.com/apache/rocketmq-client-cpp/pull/175'>ISSUE-175</a>] - Fix the death lock on pull request process of orderly consumer.
+</li>
+</ul>
+
+
+
+
