[mutter] Tag release 40.0

[Florian Müllner <fmuellner src gnome org>]

commit 21a09fb7928c17519d67ffd8c1ae80071f92fdbf
Author: Florian Müllner <fmuellner gnome org>
Date:   Sat Mar 20 13:08:06 2021 +0100

    Tag release 40.0
    
    Update NEWS.

 NEWS | 11 +++++++++++
 1 file changed, 11 insertions(+)
---
diff --git a/NEWS b/NEWS
index 097257db28..15eaabf246 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,14 @@
+40.0
+====
+* xwayland: Check permissions on /tmp/.X11-unix [Olivier; !1787]
+
+Contributors:
+  Olivier Fourdan
+
+Translators:
+  Hugo Carvalho [pt], Tim Sabsch [de], Daniel Mustieles [es],
+  Matej Urbančič [sl], Марко Костић [sr], Fran Dieguez [gl]
+
 40.rc
 =====
 * Fix keyboard input from remote desktop in Xorg session [Pascal; !1732]