diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7de46724..0a12660b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,14 +27,15 @@ project(libevent C)
 set(EVENT_VERSION_MAJOR 2)
 set(EVENT_VERSION_MINOR 1)
 set(EVENT_VERSION_PATCH 4)
-set(EVENT_NUMERIC_VERSION 0x02010400)
+set(EVENT_NUMERIC_VERSION 0x02010401)
+set(EVENT_VERSION_DEVTAG "-dev")
 
 set(EVENT_ABI_MAJOR 2)
 set(EVENT_ABI_MINOR 1)
 set(EVENT_ABI_PATCH 4)
 set(EVENT_ABI_LIBVERSION "${EVENT_ABI_MAJOR}.${EVENT_ABI_MINOR}.${EVENT_ABI_PATCH}")
 
-set(EVENT_VERSION "${EVENT_VERSION_MAJOR}.${EVENT_VERSION_MINOR}.${EVENT_VERSION_PATCH}-alpha")
+set(EVENT_VERSION "${EVENT_VERSION_MAJOR}.${EVENT_VERSION_MINOR}.${EVENT_VERSION_PATCH}-alpha${EVENT_VERSION_DEVTAG}")
 set(EVENT_PACKAGE_VERSION "${EVENT_VERSION_MAJOR}.${EVENT_VERSION_MINOR}.${EVENT_VERSION_PATCH}")
 
 option(EVENT__BUILD_SHARED_LIBRARIES "Define if libevent should be built with shared libraries instead of archives" OFF)
diff --git a/ChangeLog b/ChangeLog
index 9ada8d7e..a21cabe2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,6 @@
+Changes in version 2.1.5-alpha (?? ??? 2014)
+
+
 Changes in version 2.1.4-alpha (21 Mar 2014)
 
  Libevent 2.1.4-alpha adds a number of new miscellaneous APIs to make
diff --git a/WIN32-Code/nmake/event2/event-config.h b/WIN32-Code/nmake/event2/event-config.h
index 170ce010..5ba2d78e 100644
--- a/WIN32-Code/nmake/event2/event-config.h
+++ b/WIN32-Code/nmake/event2/event-config.h
@@ -274,7 +274,7 @@
 /* #undef EVENT__HAVE_WORKING_KQUEUE */
 
 /* Numeric representation of the version */
-#define EVENT__NUMERIC_VERSION 0x02010400
+#define EVENT__NUMERIC_VERSION 0x02010401
 
 /* Name of package */
 #define EVENT__PACKAGE "libevent"
@@ -331,7 +331,7 @@
 #define EVENT__TIME_WITH_SYS_TIME 1
 
 /* Version number of package */
-#define EVENT__VERSION "2.1.4-alpha"
+#define EVENT__VERSION "2.1.4-alpha-dev"
 
 /* Define to appropriate substitue if compiler doesnt have __func__ */
 #define EVENT____func__ __FUNCTION__
diff --git a/configure.ac b/configure.ac
index bca7462c..b843eb1f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5,7 +5,7 @@ dnl See LICENSE for copying information.
 dnl
 dnl Original version Dug Song <dugsong@monkey.org>
 
-AC_INIT(libevent,2.1.4-alpha)
+AC_INIT(libevent,2.1.4-alpha-dev)
 AC_PREREQ(2.59)
 AC_CONFIG_SRCDIR(event.c)
 
@@ -14,7 +14,7 @@ AM_INIT_AUTOMAKE
 dnl AM_SILENT_RULES req. automake 1.11.  [no] defaults V=1
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 AC_CONFIG_HEADERS(config.h  evconfig-private.h:evconfig-private.h.in)
-AC_DEFINE(NUMERIC_VERSION, 0x02010400, [Numeric representation of the version])
+AC_DEFINE(NUMERIC_VERSION, 0x02010401, [Numeric representation of the version])
 
 dnl Initialize prefix.
 if test "$prefix" = "NONE"; then