diff --git a/README.md b/README.md
index 3081d6804..504f32c17 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,8 @@
 # eMQTT
 
-eMQTT is a scalable, fault-tolerant and extensible mqtt broker written in Erlang/OTP.
+eMQTT is a scalable, fault-tolerant and extensible MQTT V3.1.1 broker written in Erlang/OTP.
 
-eMQTT support MQTT V3.1 Protocol Specification.
+eMQTT support MQTT V3.1/V3.1.1 Protocol Specification.
 
 eMQTT requires Erlang R17+.
 
diff --git a/TODO b/TODO
index d3ebc89cd..a54ea4635 100644
--- a/TODO
+++ b/TODO
@@ -27,10 +27,6 @@ fucking stupid..... esockd locked
 0.2.1
 =====
 
-full MQTT 3.1.1 support...
-
-node cluster....
-
 one million connections test...
 
 topic match benchmark tests...
@@ -41,14 +37,4 @@ full test cases...
 
 spawn_link to replace 'spawn' and 'link'
 
-keepalive
-
-retained
-
-QOS
-
-dural sub
-
-packet dump...
-