diff --git a/NEWS b/NEWS
index 46fd52e9..ae33f48f 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,11 @@
+Major changes in 45.rc:
+* Fix a plethora of threading issues with the backend
+* Fix a crash in the Shell search provider code
+* Make new Month view handle dragging events to days in other months
+* Fix crash with events without end date
+* Improve behaviour of new Month view with reduced animations
+* Updated translations
+
 Major changes in 45.beta:
 * Redesign the Month view to scroll infinitely to the future
   and past. It also displays events from other months, and
diff --git a/data/appdata/org.gnome.Calendar.appdata.xml.in.in b/data/appdata/org.gnome.Calendar.appdata.xml.in.in
index f51d1c54..73617e10 100644
--- a/data/appdata/org.gnome.Calendar.appdata.xml.in.in
+++ b/data/appdata/org.gnome.Calendar.appdata.xml.in.in
@@ -49,6 +49,9 @@
   <project_group>GNOME</project_group>
 
   <releases>
+    <release date="2023-09-02" version="45~rc" type="development" />
+    <release date="2023-08-18" version="45~beta" type="development" />
+
     <release date="2023-03-16" version="44.0" type="stable">
       <description>
         <ul>