[metacity] bump version to 3.40.0, update NEWS

[Alberts Muktupāvels <muktupavels src gnome org>]

commit 707561e06ac27438d610736c3d91cdf7790880bd
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Thu Mar 25 16:09:49 2021 +0200

    bump version to 3.40.0, update NEWS

 NEWS         | 5 +++++
 configure.ac | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)
---
diff --git a/NEWS b/NEWS
index 66325334d..897fd6c9f 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,8 @@
+Version 3.40.0
+==============
+- Fix few memory leaks.
+- Updated translations.
+
 Version 3.38.0
 ==============
 - Fix segfault when using META_DEBUG_NO_SHADOW=0. (#12)
diff --git a/configure.ac b/configure.ac
index 6defc8b45..a32e55042 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@ dnl Define version info
 dnl **************************************************************************
 
 m4_define([m_major_version], [3])
-m4_define([m_minor_version], [38])
+m4_define([m_minor_version], [40])
 m4_define([m_micro_version], [0])
 m4_define([m_version], [m_major_version.m_minor_version.m_micro_version])