Update Release Notes
diff --git a/_posts/2019-01-17-release-notes-4.4.0.md b/_posts/2019-01-17-release-notes-4.4.0.md
index 5fde006..0d029dd 100644
--- a/_posts/2019-01-17-release-notes-4.4.0.md
+++ b/_posts/2019-01-17-release-notes-4.4.0.md
@@ -28,10 +28,20 @@
## Improvement
<ul>
+<li>[<a href='https://github.com/apache/rocketmq/issues/511'>ISSUE-511</a>] - Fix typo in comment for CountDownLatch.
+</li>
+<li>[<a href='https://github.com/apache/rocketmq/issues/536'>ISSUE-536</a>] - update fastjson version to 1.2.51.
+</li>
<li>[<a href='https://github.com/apache/rocketmq/issues/571'>ISSUE-571</a>] - Polish max body size to exactly 64K.
</li>
+<li>[<a href='https://github.com/apache/rocketmq/issues/581'>ISSUE-581</a>] - Update Copyright in NOTICE file.
+</li>
<li>[<a href='https://github.com/apache/rocketmq/issues/582'>ISSUE-582</a>] - Update asynchronous send thread pool from callback executor to an exclusive one.
</li>
+<li>[<a href='https://github.com/apache/rocketmq/issues/586'>ISSUE-586</a>] - Format output number in admin tools.
+</li>
+<li>[<a href='https://github.com/apache/rocketmq/issues/640'>ISSUE-640</a>] - Fixed error when running travis-ci.
+</li>
</ul>
## Bug
