diff --git a/VERSION b/VERSION
index 437d26b11..86844988e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.10
\ No newline at end of file
+1.0.11
\ No newline at end of file
diff --git a/ecs/ChangeLog.txt b/ecs/ChangeLog.txt
index f273a2a5a..6e23b23e0 100644
--- a/ecs/ChangeLog.txt
+++ b/ecs/ChangeLog.txt
@@ -1,3 +1,7 @@
+2018-02-06 Version: 1.0.11
+1, ModifyInstanceChargeType add instanceChargeType param, support prepay instance to postpay instance.
+2, ModifyPrepayInstanceSpec add operatorType param, support downgrade prepay ecs.
+
 2018-01-10 Version: 升级小版本
 1, First release ecs for C++