diff --git a/glibmm-2.64.2.tar.xz b/glibmm-2.64.2.tar.xz
deleted file mode 100644
index ac677f0..0000000
--- a/glibmm-2.64.2.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:a75282e58d556d9b2bb44262b6f5fb76c824ac46a25a06f527108bec86b8d4ec
-size 7438116
diff --git a/glibmm-2.64.4.tar.xz b/glibmm-2.64.4.tar.xz
new file mode 100644
index 0000000..68fcaf6
--- /dev/null
+++ b/glibmm-2.64.4.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:405040ab257cef0c8f1b14fdf9f3f92d6e6403715b64f1b75e4b6f04dfb56284
+size 7488072
diff --git a/glibmm2_4.changes b/glibmm2_4.changes
index d74f941..f4fb69d 100644
--- a/glibmm2_4.changes
+++ b/glibmm2_4.changes
@@ -1,3 +1,40 @@
+-------------------------------------------------------------------
+Sat Nov 21 13:46:25 UTC 2020 - Bjørn Lie <bjorn.lie@gmail.com>
+
+- Update to version 2.64.4:
+  + Glib: PropertyProxyConnectionNode::connect_changed(): Fix using
+    without property name.
+  + gmmproc:
+    - Add optional decl_prefix parameter to _WRAP_GERROR and
+      _WRAP_ENUM. Used for adding GLIBMM_API or similar for MS
+      Visual C++.
+    - Allow decorating comparison operators (for Visual Studio
+      builds).
+    - _CLASS_BOXEDTYPE, _CLASS_OPAQUE_COPYABLE: Fix move
+      assignment.
+    - Decorate private generated classes with __declspec when
+      building with Visual Studio.
+    - generate_wrap_init.pl.in: Use
+      g_type_ensure(SomeClass::get_type()) to ensure that
+      get_type() is called.
+  + Build:
+    - Use __declspec(dllexport) consistently when building glibmm
+      with Visual Studio.
+    - Meson build: Set default value of the 'warnings' option to
+      'min'.
+    - Improve NMake support.
+    - Improve Visual Studio support.
+    - docs/reference/: Update for Doxygen >= 1.8.16.
+    - Meson build: Fix versioning on macOS.
+  + Documentation:
+    - Glib::BalancedTree docs: Recommend std::map or
+      std::unordered_map.
+    - Meson build: Add missing Glib::Value and Variant
+      documentation.
+- Add meson BuildRequires and macros, following upstreams port.
+- Add doxygen, graphviz-devel and xsltproc BuildRequires: Needed
+  for building documentation.
+
 -------------------------------------------------------------------
 Sun Mar 22 12:11:27 UTC 2020 - Bjørn Lie <bjorn.lie@gmail.com>
 
diff --git a/glibmm2_4.spec b/glibmm2_4.spec
index f813f2a..97733a7 100644
--- a/glibmm2_4.spec
+++ b/glibmm2_4.spec
@@ -20,7 +20,7 @@
 %define so_ver -2_4-1
 %define _name glibmm
 Name:           glibmm2_4
-Version:        2.64.2
+Version:        2.64.4
 Release:        0
 Summary:        C++ Interface for Glib
 License:        LGPL-2.1-or-later
@@ -29,9 +29,13 @@ URL:            http://www.gtkmm.org/
 Source0:        https://download.gnome.org/sources/glibmm/2.64/%{_name}-%{version}.tar.xz
 Source99:       baselibs.conf
 
+BuildRequires:  doxygen
 BuildRequires:  fdupes
 BuildRequires:  gcc-c++
+BuildRequires:  graphviz-devel
+BuildRequires:  meson
 BuildRequires:  pkgconfig
+BuildRequires:  xsltproc
 BuildRequires:  pkgconfig(gio-2.0)
 BuildRequires:  pkgconfig(glib-2.0) >= 2.61.2
 BuildRequires:  pkgconfig(gmodule-2.0) >= 2.49.7
@@ -87,12 +91,13 @@ C++ and makes it possible for gtkmm to wrap GObject-based APIs.
 %autosetup -p1 -n %{_name}-%{version}
 
 %build
-%configure --disable-static
-%make_build
+%meson \
+	-Dbuild-documentation=true \
+	%{nil}
+%meson_build
 
 %install
-%make_install
-find %{buildroot} -type f -name "*.la" -delete -print
+%meson_install
 %fdupes %{buildroot}/{_prefix}
 
 %post -n libglibmm%{so_ver} -p /sbin/ldconfig