Update banner release and add 1.8.0 to chooser

Signed-off-by: Fabio Utzig <utzig@apache.org>
diff --git a/docs/themes/mynewt/main-banner.html b/docs/themes/mynewt/main-banner.html
index 867efd7..0e661d1 100644
--- a/docs/themes/mynewt/main-banner.html
+++ b/docs/themes/mynewt/main-banner.html
@@ -8,7 +8,7 @@
         </div>
         <div class="news-cell">
             <div class="well">
-                <h4>Latest News:</h4> <a href="/download">Apache Mynewt 1.7.0, Apache NimBLE 1.2.0 </a> released (August 4, 2019)
+                <h4>Latest News:</h4> <a href="/download">Apache Mynewt 1.8.0, Apache NimBLE 1.3.0 </a> released (April 9, 2020)
             </div>
         </div>
     </div>
diff --git a/docs/themes/mynewt/versions.html b/docs/themes/mynewt/versions.html
index 6c1f634..2736d0f 100644
--- a/docs/themes/mynewt/versions.html
+++ b/docs/themes/mynewt/versions.html
@@ -3,6 +3,9 @@
   <option value="/latest" selected>
     Version: latest
   </option>
+  <option value="/v1_8_0" {% if cur_version == "1.8.0" %}selected="selected" {% endif %}>
+    Version: 1.8.0
+  </option>
   <option value="/v1_7_0" {% if cur_version == "1.7.0" %}selected="selected" {% endif %}>
     Version: 1.7.0
   </option>