diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1a8c8b25..e127cbff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change log
 
+### Version 0.0.9
+
+- 将调用start(启动任务)抛独立线程处理，其中的线程是通过共享非下载进程EventPool中的线程池(可并行8个线程)
+
 ### Version 0.0.8
 
 - initial release
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