diff --git a/NEWS b/NEWS
index d793800d..21c7e299 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,8 @@
+11 March 2019: Overview of changes in 2.40.0
+================================================
+
+* Fixed array and transfer annotations for documentation
+
 18 February 2019: Overview of changes in 2.39.91
 
 * Replace deprecated gnome-common with autoreconf
diff --git a/configure.ac b/configure.ac
index 579500d7..472f44b4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,8 +3,8 @@ dnl Configure script for the Gnome library
 dnl
 
 m4_define([libgtop_major_version], [2])
-m4_define([libgtop_minor_version], [39])
-m4_define([libgtop_micro_version], [91])
+m4_define([libgtop_minor_version], [40])
+m4_define([libgtop_micro_version], [0])
 m4_define([libgtop_version], [libgtop_major_version.libgtop_minor_version.libgtop_micro_version])
 
 dnl  increment if the interface has additions, changes, removals.