diff --git a/NEWS b/NEWS
index 8c34da141..262862a19 100644
--- a/NEWS
+++ b/NEWS
@@ -6,6 +6,9 @@ Copyright (C) 2000-2021  Michael Black W9MDB, and others
 
 Please send Hamlib bug reports to hamlib-developer@lists.sourceforge.net
 
+Version 4.5
+        * 202?-??-??
+
 Version 4.4
         * 2021-12-02
         * Icom rigs now default filter 2 when setting PKTUSB but user can override 
diff --git a/configure.ac b/configure.ac
index 540c0baf5..0f04b931f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -14,7 +14,7 @@ dnl Please do not use '-' in the version number, as package managers will fail,
 dnl however, the use of '~' should be fine as apt (others?) will treat
 dnl it as an earlier version than the actual release.  TNX KA6MAL
 dnl PACKAGE_NAME + " " + PACKAGE_VERSION must not exceed 20 chars!
-AC_INIT([Hamlib],[4.4~git],[hamlib-developer@lists.sourceforge.net],[hamlib],[http://www.hamlib.org])
+AC_INIT([Hamlib],[4.5~git],[hamlib-developer@lists.sourceforge.net],[hamlib],[http://www.hamlib.org])
 
 AC_CONFIG_SRCDIR([include/hamlib/rig.h])
 AC_CONFIG_MACRO_DIR([macros])
@@ -56,7 +56,7 @@ dnl See README.release on setting these values
 # Values given to -version-info when linking.  See libtool documentation.
 # Set them here to keep c++/Makefile and src/Makefile in sync.
 ABI_VERSION=4
-ABI_REVISION=4
+ABI_REVISION=5
 ABI_AGE=0
 
 AC_DEFINE_UNQUOTED([ABI_VERSION], [$ABI_VERSION], [Frontend ABI version])