diff --git a/configure/CONFIG_PVXS_VERSION b/configure/CONFIG_PVXS_VERSION
index 2701ee1..834e4bc 100644
--- a/configure/CONFIG_PVXS_VERSION
+++ b/configure/CONFIG_PVXS_VERSION
@@ -1,6 +1,6 @@
 PVXS_MAJOR_VERSION = 0
 PVXS_MINOR_VERSION = 3
-PVXS_MAINTENANCE_VERSION = 0
+PVXS_MAINTENANCE_VERSION = 1
 
 # Version range conditions in Makefiles
 #
@@ -12,7 +12,8 @@ PVXS_MAINTENANCE_VERSION = 0
 #
 # ifneq ($(PVXS_X_Y_Z),YES)   # PVXS != X.Y.Z
 #
-PVXS_0_3_0 = YES
+PVXS_0_3_1 = YES
+PVXS_0_3_0 = NO
 PVXS_0_2_2 = NO
 PVXS_0_2_1 = NO
 PVXS_0_2_0 = NO
diff --git a/documentation/releasenotes.rst b/documentation/releasenotes.rst
index a5cf88d..c1d0b46 100644
--- a/documentation/releasenotes.rst
+++ b/documentation/releasenotes.rst
@@ -3,6 +3,9 @@
 Release Notes
 =============
 
+0.3.1 (UNRELEASED)
+------------------
+
 0.3.0 (May 2022)
 ----------------
 
diff --git a/setup.py b/setup.py
index c172f65..926a000 100755
--- a/setup.py
+++ b/setup.py
@@ -624,7 +624,7 @@ build_dso.sub_commands.extend([
 
 
 pvxs_ver = '%(PVXS_MAJOR_VERSION)s.%(PVXS_MINOR_VERSION)s.%(PVXS_MAINTENANCE_VERSION)s'%pvxsversion
-#pvxs_ver += 'a2'
+pvxs_ver += 'a1'
 
 setup(
     name='pvxslibs',