[geary] Update files for 40.alpha release

[Michael Gratton <mjog src gnome org>]

commit 3becbaa538fc108d0b0f1ab29e5852536b0fed67
Author: Michael Gratton <mike vee net>
Date:   Mon Jan 18 22:01:43 2021 +1100

    Update files for 40.alpha release

 NEWS                                      | 13 +++++++++++++
 desktop/org.gnome.Geary.appdata.xml.in.in | 14 ++++++++++++++
 2 files changed, 27 insertions(+)
---
diff --git a/NEWS b/NEWS
index 22cbbb889..b7bcfe657 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,16 @@
+Version 40.alpha
+~~~~~~~~~~~~~~~~
+Released: 2021-01-18
+
+An alpha-quality development release.
+
+Please see the AppStream file for updated features. Notable build
+changes included in this release:
+
+* Require a build flag to be set for releases builds and from tarballs
+* Updated build options to use meson features, be internally consistent
+* Add a dependency on the libstemmer library
+
 Version 3.38.0.1
 ~~~~~~~~~~~~~~~~
 Released: 2020-09-15
diff --git a/desktop/org.gnome.Geary.appdata.xml.in.in b/desktop/org.gnome.Geary.appdata.xml.in.in
index 7c1ddcab6..8e8b773b8 100644
--- a/desktop/org.gnome.Geary.appdata.xml.in.in
+++ b/desktop/org.gnome.Geary.appdata.xml.in.in
@@ -88,6 +88,20 @@
   <translation type="gettext">geary</translation>
 
   <releases>
+    <release version="40.0">
+      <description>
+        <p>Enhancements included in this release:</p>
+        <ul>
+          <li>Visual refresh including updated icon and interface</li>
+          <li>Add support for half-screen, portrait and small displays</li>
+          <li>Improved performance when displaying large conversations</li>
+          <li>Improved keyboard shortcuts</li>
+          <li>Improved server compatibility</li>
+          <li>Numerous bug fixes and user interface improvements</li>
+          <li>Numerous user interface translation updates</li>
+        </ul>
+      </description>
+    </release>
     <release version="3.38" date="2020-09-13">
       <description>
         <p>Enhancements included in this release:</p>