diff --git a/gnome-calendar-44.1.tar.xz b/gnome-calendar-44.1.tar.xz
deleted file mode 100644
index f044b77..0000000
--- a/gnome-calendar-44.1.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:30a1b738b670bd124e462468e671187fc0dba5b9ee2af6a8ebd9e7874bf3b77e
-size 430464
diff --git a/gnome-calendar-45.rc.tar.xz b/gnome-calendar-45.rc.tar.xz
new file mode 100644
index 0000000..7b506ba
--- /dev/null
+++ b/gnome-calendar-45.rc.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a10347d0d78ff837f97eefee66109180ea285898b0498edf79e9ccef33281009
+size 456100
diff --git a/gnome-calendar-check-for-null-child.patch b/gnome-calendar-check-for-null-child.patch
deleted file mode 100644
index cd2cdec..0000000
--- a/gnome-calendar-check-for-null-child.patch
+++ /dev/null
@@ -1,29 +0,0 @@
-From b9d4405e69dc6c69112a5546aea1c8d709336bac Mon Sep 17 00:00:00 2001
-From: Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
-Date: Fri, 4 Aug 2023 21:41:08 -0300
-Subject: [PATCH] views/week-header: Check for NULL child
-
-I'm not sure if this is actually correct, but I'm too tired to
-think the week header through, so let's just be slightly more
-protective for now.
----
- src/gui/views/gcal-week-header.c | 3 +++
- 1 file changed, 3 insertions(+)
-
-diff --git a/src/gui/views/gcal-week-header.c b/src/gui/views/gcal-week-header.c
-index a652618b..b1509cc7 100644
---- a/src/gui/views/gcal-week-header.c
-+++ b/src/gui/views/gcal-week-header.c
-@@ -764,6 +764,9 @@ apply_overflow_at_weekday (GcalWeekHeader *self,
- 
-   child = gtk_grid_get_child_at (self->grid, weekday, 3);
- 
-+  if (!child)
-+    return;
-+
-   split_event_widget_at_column (self, child, weekday);
-   gtk_widget_set_visible (child, FALSE);
- }
--- 
-2.40.0
-
diff --git a/gnome-calendar.changes b/gnome-calendar.changes
index 322e10c..1f63dc4 100644
--- a/gnome-calendar.changes
+++ b/gnome-calendar.changes
@@ -1,3 +1,34 @@
+-------------------------------------------------------------------
+Sat Sep  2 20:33:12 UTC 2023 - Luciano Santos <luc14n0@opensuse.org>
+
+- Update to version 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.
+
+-------------------------------------------------------------------
+Sat Aug 19 18:45:27 UTC 2023 - Bjørn Lie <bjorn.lie@gmail.com>
+
+- Update to version 45.beta:
+  + Redesign the Month view to scroll infinitely to the future and
+    past. It also displays events from other months, and allows
+    creating events that span multiple months.
+  + Use modern widgets in the event editor dialog.
+  + Use modern widgets in the calendar management dialog.
+  + Use modern widgets in the event editor dialog.
+  + Improve search performance and increase the range.
+  + Various improvements to the event preview popover.
+  + Add a menu shortcut for the Date & Time panel.
+  + Port various message dialogs to AdwMessageDialog.
+  + Add various shortcuts to common actions.
+  + Load cached events immediately on startup.
+  + Updated translations.
+- Drop gnome-calendar-check-for-null-child.patch: fixed upstream.
+
 -------------------------------------------------------------------
 Fri Aug 18 06:35:37 UTC 2023 - Jonathan Kang <songchuan.kang@suse.com>
 
diff --git a/gnome-calendar.spec b/gnome-calendar.spec
index 21b6779..43680cf 100644
--- a/gnome-calendar.spec
+++ b/gnome-calendar.spec
@@ -17,15 +17,13 @@
 
 
 Name:           gnome-calendar
-Version:        44.1
+Version:        45.rc
 Release:        0
 Summary:        A calendar application for GNOME
 License:        GPL-3.0-or-later
 Group:          Productivity/Office/Organizers
 URL:            https://wiki.gnome.org/Design/Apps/Calendar
-Source0:        https://download.gnome.org/sources/gnome-calendar/44/%{name}-%{version}.tar.xz
-# PATCH-FIX-UPSTREAM gnome-calendar-check-for-null-child.patch glgo#GNOME/gnome-calendar/commit/b9d4405e6 bsc#1214188 sckang@suse.com -- views/week-header: Check for NULL child
-Patch0:         gnome-calendar-check-for-null-child.patch
+Source0:        https://download.gnome.org/sources/gnome-calendar/45/%{name}-%{version}.tar.xz
 
 BuildRequires:  fdupes
 BuildRequires:  meson