diff --git a/INSTALL b/INSTALL
index 9b79303..5795517 100644
--- a/INSTALL
+++ b/INSTALL
@@ -2,7 +2,7 @@
 Mininet Installation/Configuration Notes
 ----------------------------------------
 
-Mininet 2.2.1
+Mininet 2.2.2b1
 ---
 
 The supported installation methods for Mininet are 1) using a
diff --git a/LICENSE b/LICENSE
index 5a439e8..84ea923 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
-Mininet 2.2.1 License
+Mininet 2.2.2b1 License
 
-Copyright (c) 2013-2015 Open Networking Laboratory
+Copyright (c) 2013-2016 Open Networking Laboratory
 Copyright (c) 2009-2012 Bob Lantz and The Board of Trustees of
 The Leland Stanford Junior University
 
diff --git a/README.md b/README.md
index eacb0d7..dae1394 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ Mininet: Rapid Prototyping for Software Defined Networks
 
 *The best way to emulate almost any network on your laptop!*
 
-Mininet 2.2.1
+Mininet 2.2.2b1
 
 ### What is Mininet?
 
diff --git a/mininet/net.py b/mininet/net.py
index 4d531c0..dc1ef6c 100755
--- a/mininet/net.py
+++ b/mininet/net.py
@@ -108,7 +108,7 @@ from mininet.util import ( quietRun, fixLimits, numCores, ensureRoot,
 from mininet.term import cleanUpScreens, makeTerms
 
 # Mininet version: should be consistent with README and LICENSE
-VERSION = "2.2.1"
+VERSION = "2.2.2b1"
 
 class Mininet( object ):
     "Network emulation with hosts spawned in network namespaces."