diff --git a/README.md b/README.md
index de2eb6e..99f4b1a 100644
--- a/README.md
+++ b/README.md
@@ -15,10 +15,12 @@ The client is known to work with [OpenVPN®][openvpn] 2.3+ servers. Key renegoti
 - [x] Handshake and tunneling over UDP or TCP
 - [x] Ciphers
     - AES-CBC (128 and 256 bit)
-    - AES-GCM (128 and 256 bit)
+    - AES-GCM (128 and 256 bit, 2.4)
 - [x] HMAC digests
     - SHA-1
     - SHA-256
+- [x] NCP (Negotiable Crypto Parameters, 2.4)
+    - Server-side
 - [x] TLS handshake
     - CA validation
     - Client certificate