diff --git a/.gitignore b/.gitignore
index a96e799..a07c854 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,4 @@
 /appstream-glib-0.4.1.tar.xz
 /appstream-glib-0.5.0.tar.xz
 /appstream-glib-0.5.1.tar.xz
+/appstream-glib-0.5.2.tar.xz
diff --git a/0001-Try-harder-to-deal-with-icons-that-have-extension-or.patch b/0001-Try-harder-to-deal-with-icons-that-have-extension-or.patch
deleted file mode 100644
index b7c02d2..0000000
--- a/0001-Try-harder-to-deal-with-icons-that-have-extension-or.patch
+++ /dev/null
@@ -1,46 +0,0 @@
-From 01e48c3cd5f4d06e8aec0d33cffdff9fb5bc9d3d Mon Sep 17 00:00:00 2001
-From: Kalev Lember <klember@redhat.com>
-Date: Wed, 14 Oct 2015 18:08:48 +0200
-Subject: [PATCH] Try harder to deal with icons that have extension or full
- path listed
-
-It's a common mistake in desktop files to list icons with extension,
-such as 'filename.png'. Try harder to handle them and special case
-common extensions; also while at this, make sure to handle icons
-with full path as well.
----
- libappstream-glib/as-app-desktop.c | 17 ++++++++++++++---
- 1 file changed, 14 insertions(+), 3 deletions(-)
-
-diff --git a/libappstream-glib/as-app-desktop.c b/libappstream-glib/as-app-desktop.c
-index 05f2556..07602fa 100644
---- a/libappstream-glib/as-app-desktop.c
-+++ b/libappstream-glib/as-app-desktop.c
-@@ -166,10 +166,21 @@ as_app_parse_file_key (AsApp *app,
- 		if (tmp != NULL && tmp[0] != '\0') {
- 			g_autoptr(AsIcon) icon = NULL;
- 			icon = as_icon_new ();
-+
-+			if (g_path_is_absolute (tmp)) {
-+				as_icon_set_filename (icon, tmp);
-+			} else {
-+				/* Work around a common mistake in desktop files */
-+				dot = g_strstr_len (tmp, -1, ".");
-+				if (dot != NULL &&
-+				    (g_strcmp0 (dot, ".png") == 0 ||
-+				     g_strcmp0 (dot, ".xpm") == 0 ||
-+				     g_strcmp0 (dot, ".svg") == 0)) {
-+					*dot = '\0';
-+				}
-+			}
- 			as_icon_set_name (icon, tmp);
--			dot = g_strstr_len (tmp, -1, ".");
--			if (dot != NULL)
--				*dot = '\0';
-+
- 			if (as_utils_is_stock_icon_name (tmp)) {
- 				as_icon_set_name (icon, tmp);
- 				as_icon_set_kind (icon, AS_ICON_KIND_STOCK);
--- 
-2.5.0
-
diff --git a/libappstream-glib.spec b/libappstream-glib.spec
index 565d81c..1405e1e 100644
--- a/libappstream-glib.spec
+++ b/libappstream-glib.spec
@@ -1,12 +1,10 @@
 Summary:   Library for AppStream metadata
 Name:      libappstream-glib
-Version:   0.5.1
-Release:   2%{?dist}
+Version:   0.5.2
+Release:   1%{?dist}
 License:   LGPLv2+
 URL:       http://people.freedesktop.org/~hughsient/appstream-glib/
 Source0:   http://people.freedesktop.org/~hughsient/appstream-glib/releases/appstream-glib-%{version}.tar.xz
-# Backported from upstream
-Patch0:    0001-Try-harder-to-deal-with-icons-that-have-extension-or.patch
 
 BuildRequires: glib2-devel >= 2.45.8
 BuildRequires: libtool
@@ -20,6 +18,7 @@ BuildRequires: gdk-pixbuf2-devel >= 2.31.5
 BuildRequires: gtk3-devel
 BuildRequires: gettext
 BuildRequires: intltool
+BuildRequires: libgcab1-devel
 
 # for the builder component
 BuildRequires: fontconfig-devel
@@ -38,7 +37,7 @@ Obsoletes: appdata-tools < 0.1.9
 Provides: appdata-tools
 
 # this is not a library version
-%define as_plugin_version               2
+%define as_plugin_version               4
 
 %description
 This library provides GObjects and helper methods to make it easy to read and
@@ -70,7 +69,6 @@ GLib headers and libraries for appstream-builder.
 
 %prep
 %setup -q -n appstream-glib-%{version}
-%patch0 -p1
 
 %build
 %configure \
@@ -103,7 +101,6 @@ make install DESTDIR=$RPM_BUILD_ROOT
 %{_libdir}/libappstream-glib.so.8*
 %{_libdir}/girepository-1.0/*.typelib
 %{_bindir}/appstream-util
-%{_bindir}/appdata-validate
 %dir %{_datadir}/bash-completion/completions/
 %{_datadir}/bash-completion/completions/appstream-util
 %{_mandir}/man1/appstream-util.1.gz
@@ -135,6 +132,16 @@ make install DESTDIR=$RPM_BUILD_ROOT
 %{_datadir}/gir-1.0/AppStreamBuilder-1.0.gir
 
 %changelog
+* Tue Oct 27 2015 Richard Hughes <richard@hughsie.com> 0.5.2-1
+- New upstream release
+- Accept a '0x' hexidecimal prefix when parsing a version
+- Add multi-guid cabinet firmware support
+- Add support for AppStream <size> metadata
+- Fix crash in validator when processing '<li></li>'
+- Remove the long-obsolete appdata-validate tool
+- Require AppData files to be present in the AppStream metadata
+- Use g_set_object() to fix potential crash when adding pixbufs
+
 * Thu Oct 15 2015 Kalev Lember <klember@redhat.com> 0.5.1-2
 - Backport a patch to fix icons in gnome-software for apps without AppData
 - Use license macro for COPYING
diff --git a/sources b/sources
index 2fc0c59..6ec42fd 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-51584924fb0d33254433ef495348b58e  appstream-glib-0.5.1.tar.xz
+25be5764be081e36fe2739018108e9ea  appstream-glib-0.5.2.tar.xz