diff --git a/Doxyfile b/Doxyfile
index fe00055..2b9f6bb 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = pva2pva
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.3.2-dev
+PROJECT_NUMBER         = 1.4.0
 
 # 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_QSRV_VERSION b/configure/CONFIG_QSRV_VERSION
index fc6cef3..6e480de 100644
--- a/configure/CONFIG_QSRV_VERSION
+++ b/configure/CONFIG_QSRV_VERSION
@@ -1,7 +1,7 @@
 # Module (source) version
 EPICS_QSRV_MAJOR_VERSION = 1
-EPICS_QSRV_MINOR_VERSION = 3
-EPICS_QSRV_MAINTENANCE_VERSION = 2
+EPICS_QSRV_MINOR_VERSION = 4
+EPICS_QSRV_MAINTENANCE_VERSION = 0
 
 # ABI version
 EPICS_QSRV_ABI_MAJOR_VERSION = 1
@@ -9,7 +9,7 @@ EPICS_QSRV_ABI_MINOR_VERSION = 2
 
 # Development flag, set to zero for release versions
 
-EPICS_QSRV_DEVELOPMENT_FLAG = 1
+EPICS_QSRV_DEVELOPMENT_FLAG = 0
 
 # Immediately after a release the MAINTENANCE_VERSION
 # will be incremented and the DEVELOPMENT_FLAG set to 1
diff --git a/documentation/Doxyfile b/documentation/Doxyfile
index 85102c0..37ce20a 100644
--- a/documentation/Doxyfile
+++ b/documentation/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = pva2pva
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.3.1
+PROJECT_NUMBER         = 1.4.0
 
 # 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/documentation/release_notes.dox b/documentation/release_notes.dox
index 96d9554..2739028 100644
--- a/documentation/release_notes.dox
+++ b/documentation/release_notes.dox
@@ -2,8 +2,8 @@
 
 @page release_notes Release Notes
 
-Release 1.3.2 (UNRELEASED)
-==========================
+Release 1.4.0 (September 2022)
+==============================
 
 - Bug Fixes
  - apply ACF when writing to atomic group