$ git diff --patch-with-stat --summary a0a6e6c11cbb33c81586ec51001521b0da1d4040..eb635bf1ab38f89b1dfd2e7b9efaba229f21084a

 .abf.yml     |  2 +-
 flatpak.spec | 12 +++++++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/.abf.yml b/.abf.yml
index a3dae1c..0b17c50 100644
--- a/.abf.yml
+++ b/.abf.yml
@@ -1,2 +1,2 @@
 sources:
-  flatpak-1.5.1.tar.xz: 8df63267825e8f74466b053070e4364dcc824bb0
+  flatpak-1.6.2.tar.xz: 6763d41ca91cb2547456c16ca5f7d53c95d89a14
diff --git a/flatpak.spec b/flatpak.spec
index df76146..977a019 100644
--- a/flatpak.spec
+++ b/flatpak.spec
@@ -13,7 +13,7 @@
 %{?!_pkgdocdir:%define _pkgdocdir %{_docdir}/%{name}}
 
 Name:		flatpak
-Version:	1.5.1
+Version:	1.6.2
 Release:	1
 Summary:	Application deployment framework for desktop apps
 Group:		System/Base
@@ -103,6 +103,14 @@ This package contains libflatpak GObject libraries.
 %autosetup -p1
 
 %build
+# as of Flatpak 1.5.2 and LLVM/Clang 9.0.1-0.20191216.1 build failed with many error like:
+#error: passing 'typeof (*(&g_define_type_id__volatile)) *' (aka 'volatile unsigned long *') 
+#to parameter of type 'gsize *' (aka 'unsigned long *') discards qualifiers 
+#[-Werror,-Wincompatible-pointer-types-discards-qualifiers]
+# Switch to GCC fix it
+export CC=gcc
+export CXX=g++
+
 (if ! test -x configure; then NOCONFIGURE=1 ./autogen.sh; CONFIGFLAGS=--enable-gtk-doc; fi;
  # User namespace support is sufficient.
 
@@ -142,6 +150,7 @@ flatpak remote-list --system &> /dev/null || :
 %{_libexecdir}/flatpak-portal
 %{_libexecdir}/flatpak-dbus-proxy
 %{_libexecdir}/flatpak-validate-icon
+%{_libexecdir}/flatpak-oci-authenticator
 %{_libexecdir}/revokefs-fuse
 %{_datadir}/bash-completion/completions/flatpak
 %{_datadir}/zsh/site-functions/_flatpak
@@ -151,6 +160,7 @@ flatpak remote-list --system &> /dev/null || :
 %{_datadir}/dbus-1/system-services/org.freedesktop.Flatpak*
 %{_datadir}/dbus-1/services/org.freedesktop.Flatpak.*
 %{_datadir}/dbus-1/services/org.freedesktop.portal.Flatpak.*
+%{_datadir}/dbus-1/services/org.flatpak.Authenticator.Oci.service
 %{_datadir}/polkit-1/rules.d/org.freedesktop.Flatpak.*
 %{_datadir}/polkit-1/actions/org.freedesktop.Flatpak.*
 %{_mandir}/man1/flatpak*.1*