diff --git a/README.md b/README.md
index 7db5735..a553661 100644
--- a/README.md
+++ b/README.md
@@ -43,6 +43,8 @@ For help run :
 The configuration file is the same (json format), but there are a few differences :
   - the ssl ca parameter points to a java [keystore](https://github.com/didfet/logstash-forwarder-java/blob/master/HOWTO-KEYSTORE.md) containing the root certificate of the server, not a PEM file
   - comments are C-style comments
+  - multiline support with attributes "pattern", "negate" (true/false) and what (Previous/Next)
+
 
 ### Command-line options