diff --git a/HISTORY b/HISTORY
index 8d461df..2ae0a41 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,5 +1,5 @@
 
-Version 1.23  2015-11-05
+Version 1.23  2015-11-06
   * sched_thread.c: task can execute in a new thread
   * sched_thread.c: support delay tasks
   * add function get_current_time_us and get_current_time_ms
diff --git a/README b/README
index 789d0d3..5f2135b 100644
--- a/README
+++ b/README
@@ -10,7 +10,9 @@ Chinese language: http://linux.chinaunix.net/bbs/forum-75-1.html
 c common functions library extracted from my open source projects FastDFS and 
 FastDHT. this library is very simple and stable.
 
-functions including: string, logger, chain, hash, socket, ini file reader, 
+functions including: string, logger, chain, hash, avl treee, socket,
+ini file reader, memory pool, object based allocator, connection pool,
+timer based time wheel, ioevent like epull, local ip functions,
 base64 encode / decode, url encode / decode etc.
 
 detail info please see the c header files.