diff --git a/HISTORY b/HISTORY
index 4eacd2e..5692657 100644
--- a/HISTORY
+++ b/HISTORY
@@ -2,7 +2,8 @@
 Version 5.08  2016-01-26
  * install library to $(TARGET_PREFIX)/lib anyway
  * php extension compiled in PHP 7
- * dio thread use blocked_queue
+ * dio thread use blocked_queue, you must upgrade libfastcommon
+   to V1.24 or later
 
 Version 5.07  2015-09-13
  * schedule task add the "second" field
diff --git a/INSTALL b/INSTALL
index ca82748..36e452f 100644
--- a/INSTALL
+++ b/INSTALL
@@ -13,7 +13,7 @@ Chinese language: http://www.csource.org/
 #step 2. download FastDFS source package and unpack it, 
 tar xzf FastDFS_v5.x.tar.gz
 #for example:
-tar xzf FastDFS_v5.07.tar.gz
+tar xzf FastDFS_v5.08.tar.gz
 
 #step 3. enter the FastDFS dir
 cd FastDFS