diff --git a/CHANGES b/CHANGES
index 0010890..072bb1d 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,7 @@
+3.2.0 2017-04-27
+- add auth_chain_a
+- remove auth_aes128, auth_sha1, auth_sha1_v2, verify_simple, auth_simple, verify_sha1
+
 3.1.2 2017-04-07
 - display UID
 - auto adjust TCP MSS
diff --git a/shadowsocks/version.py b/shadowsocks/version.py
index 882c72e..eea9c31 100644
--- a/shadowsocks/version.py
+++ b/shadowsocks/version.py
@@ -16,5 +16,5 @@
 # under the License.
 
 def version():
-    return '3.1.2 2017-04-07'
+    return '3.2.0 2017-04-27'