diff --git a/Doxyfile b/Doxyfile
index 7615fc1..a9c1e6a 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = pvaClientCPP
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 4.8.0
+PROJECT_NUMBER         = 4.8.1-dev
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/configure/CONFIG_PVACLIENT_VERSION b/configure/CONFIG_PVACLIENT_VERSION
index a7ccfe0..e9e7e34 100644
--- a/configure/CONFIG_PVACLIENT_VERSION
+++ b/configure/CONFIG_PVACLIENT_VERSION
@@ -2,11 +2,11 @@
 
 EPICS_PVACLIENT_MAJOR_VERSION = 4
 EPICS_PVACLIENT_MINOR_VERSION = 8
-EPICS_PVACLIENT_MAINTENANCE_VERSION = 0
+EPICS_PVACLIENT_MAINTENANCE_VERSION = 1
 
 # Development flag, set to zero for release versions
 
-EPICS_PVACLIENT_DEVELOPMENT_FLAG = 0
+EPICS_PVACLIENT_DEVELOPMENT_FLAG = 1
 
 # Immediately after a release the MAINTENANCE_VERSION
 # will be incremented and the DEVELOPMENT_FLAG set to 1