diff --git a/xen.spec b/xen.spec
index 2a350e7..8262a8d 100644
--- a/xen.spec
+++ b/xen.spec
@@ -1,14 +1,14 @@
 %define bigver %(echo %version | cut -d. -f1)
 %define majver %(echo %version | cut -d. -f1-2)
 Name:          xen
-Version:       4.8.0
+Version:       4.16.0
 Release:       1mamba
 Summary:       An high performing server virtualization software
 Group:         Applications/Emulators
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://www.xen.org
+URL:           https://xenproject.org/
 Source:        https://downloads.xenproject.org/release/xen/%{version}/xen-%{version}.tar.gz
 Source1:       xen-grub-conf-07_xen
 Patch0:        %{name}-3.1.0-gcc4.patch
@@ -22,68 +22,59 @@ Patch7:        xen-4.7.0-gcc-6.1.0.patch
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: libGL-devel
-BuildRequires: libGLESv2-devel
-BuildRequires: libSDL-devel
+BuildRequires: libSDL2-devel
 BuildRequires: libX11-devel
-BuildRequires: libXext-devel
 BuildRequires: libaio-devel
-BuildRequires: libatk-devel
-BuildRequires: libbluetooth-devel
+BuildRequires: libbrltty-devel
 BuildRequires: libbzip2-devel
+BuildRequires: libcacard-devel
 BuildRequires: libcairo-devel
-BuildRequires: libcap-devel
 BuildRequires: libcap-ng-devel
 BuildRequires: libcurl-devel
 BuildRequires: libe2fs-devel
 BuildRequires: libepoxy-devel
-BuildRequires: libffi-devel
-BuildRequires: libfontconfig-devel
-BuildRequires: libfreetype-devel
+BuildRequires: libfuse3-devel
 BuildRequires: libgcc
 BuildRequires: libgdk-pixbuf-devel
 BuildRequires: libglib-devel
-BuildRequires: libgmp-devel
 BuildRequires: libgnutls-devel
-BuildRequires: libgtk2-devel
-BuildRequires: libidn-devel
+BuildRequires: libgtk3-devel
 BuildRequires: libjpeg-devel
 BuildRequires: liblzma-devel
 BuildRequires: liblzo-devel
-BuildRequires: libncurses5
-BuildRequires: libnettle-devel
+BuildRequires: libmesa-devel
+BuildRequires: libmultipath-tools-devel
+BuildRequires: libncurses-devel
+BuildRequires: libndctl-devel
 BuildRequires: libnfs-devel
 BuildRequires: libnl-devel
-BuildRequires: libnspr-devel
-BuildRequires: libnss-devel
-BuildRequires: libp11-kit-devel
-BuildRequires: libpango-devel
-BuildRequires: libpci-devel
-BuildRequires: libpcre-devel
+BuildRequires: libnuma-devel
+BuildRequires: libpam-devel
 BuildRequires: libpixman-devel
 BuildRequires: libpng-devel
-BuildRequires: libpython-devel
-BuildRequires: libpython27-devel
+BuildRequires: libpulseaudio-devel
+BuildRequires: libpython3-devel
 BuildRequires: libsasl2-devel
+BuildRequires: libsdl2_image-devel
+BuildRequires: libseccomp-devel
 BuildRequires: libsnappy-devel
 BuildRequires: libspice-devel
-BuildRequires: libssh2-devel
-BuildRequires: libstdc++6-devel
+BuildRequires: libssh-devel
 BuildRequires: libsystemd-devel
-BuildRequires: libtasn1-devel
+BuildRequires: libudev-devel
 BuildRequires: libusb-devel
 BuildRequires: libusbredir-devel
 BuildRequires: libuuid-devel
-BuildRequires: libvte0-devel
+BuildRequires: libvte-devel
+BuildRequires: libxkbcommon-devel
 BuildRequires: libyajl-devel
 BuildRequires: libz-devel
-BuildRequires: perl-devel
+BuildRequires: libzstd-devel
 ## AUTOBUILDREQ-END
 BuildRequires: ocaml-findlib
 Requires:      bridge-utils
 Requires:      python
 Requires:      libxen = %{version}-%{release}
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 With Xen virtualization, a thin software layer known as the Xen hypervisor is inserted between the server’s hardware and the operating system. This provides an abstraction layer that allows each physical server to run one or more “virtual servers,” effectively decoupling the operating system and its applications from the underlying physical server.
@@ -103,7 +94,7 @@ Summary:       Static libraries and header files for Xen
 Requires:      libxen = %{version}-%{release}
 Group:         Development/Libraries
 Provides:      xen-devel
-Obsoletes:     xen-devel
+Obsoletes:     xen-devel < 4.16.0
 
 %description -n libxen-devel
 With Xen virtualization, a thin software layer known as the Xen hypervisor is inserted between the server’s hardware and the operating system. This provides an abstraction layer that allows each physical server to run one or more “virtual servers,” effectively decoupling the operating system and its applications from the underlying physical server.
@@ -149,7 +140,10 @@ export CFLAGS_FIX="$(echo %optflags | sed 's|-m64||g;s|-mtune=generic||g')"
 
 %configure \
    --disable-ocamltools \
-   --with-systemd=%{_unitdir}
+   --with-systemd=%{_unitdir} \
+%ifarch %{ix86}
+   --disable-golang
+%endif
 
 %make tools docs -j1
 
@@ -198,12 +192,8 @@ rm -rf %{buildroot}%{_prefix}/local
 %defattr(-,root,root)
 %config(noreplace) %{_sysconfdir}/sysconfig/xencommons
 %config(noreplace) %{_sysconfdir}/sysconfig/xendomains
-#%{_sysconfdir}/hotplug/xen-backend.agent
-%{_sysconfdir}/bash_completion.d/xl.sh
+%{_sysconfdir}/bash_completion.d/xl
 %{_sysconfdir}/grub.d/07_xen
-#%{_sysconfdir}/udev/rules.d/xen-backend.rules
-#%{_sysconfdir}/udev/xen-backend.rules
-#%{_sysconfdir}/udev/rules.d/xend.rules
 %dir %{_sysconfdir}/xen
 %{_sysconfdir}/xen/*
 %{_sysconfdir}/modules.d/xen.conf
@@ -212,11 +202,8 @@ rm -rf %{buildroot}%{_prefix}/local
 /boot/xen-%{bigver}.gz
 /boot/xen-%{version}.config
 /boot/xen.gz
-#/boot/xen-syms-%{version}
-%{_bindir}/qemu-img-xen
-%{_bindir}/qemu-nbd-xen
 %{_bindir}/pygrub
-#%{_bindir}/remus
+%{_bindir}/vchan-socket-proxy
 %{_bindir}/xen-cpuid
 %{_bindir}/xen-detect
 %{_bindir}/xenalyze
@@ -232,64 +219,16 @@ rm -rf %{buildroot}%{_prefix}/local
 %{_bindir}/xenstore-rm
 %{_bindir}/xenstore-watch
 %{_bindir}/xenstore-write
-#%{_bindir}/xentrace
 %{_bindir}/xentrace_format
-#%{_bindir}/xentrace_setsize
-#%{_sbindir}/blktapctrl
 %{_sbindir}/flask-getenforce
 %{_sbindir}/flask-get-bool
 %{_sbindir}/flask-label-pci
 %{_sbindir}/flask-set-bool
 %{_sbindir}/flask-loadpolicy
 %{_sbindir}/flask-setenforce
-#%{_sbindir}/fs-backend
 %{_sbindir}/gdbsx
-#%{_sbindir}/gtracestat
-#%{_sbindir}/gtraceview
-%{_sbindir}/img2qcow
-%{_sbindir}/kdd
-%{_sbindir}/lock-util
-#%{_sbindir}/oxenstored
-%{_sbindir}/qcow-create
-%{_sbindir}/qcow2raw
-%{_sbindir}/tap-ctl
-#%{_sbindir}/tapdisk
-%{_sbindir}/tapdisk-client
-%{_sbindir}/tapdisk-diff
-%{_sbindir}/tapdisk-stream
-%{_sbindir}/tapdisk2
-%{_sbindir}/td-util
-%{_sbindir}/vhd-update
-%{_sbindir}/vhd-util
-%{_sbindir}/xen-bugtool
-%{_sbindir}/xen-hptool
-%{_sbindir}/xen-hvmcrash
-%{_sbindir}/xen-hvmctx
-%{_sbindir}/xen-livepatch
-%{_sbindir}/xen-lowmemd
-%{_sbindir}/xen-mfndump
-%{_sbindir}/xen-tmem-list-parse
-#%{_sbindir}/xen-python-path
-%{_sbindir}/xen-ringwatch
-%{_sbindir}/xenbaked
-%{_sbindir}/xenconsoled
-%{_sbindir}/xencov
-#%{_sbindir}/xend
-%{_sbindir}/xenlockprof
-%{_sbindir}/xenmon.py
-#%{_sbindir}/xenpaging
-%{_sbindir}/xenperf
-%{_sbindir}/xenpm
-%{_sbindir}/xenpmd
-%{_sbindir}/xenstored
-%{_sbindir}/xentop
-%{_sbindir}/xentrace*
-%{_sbindir}/xenwatchdogd
+%{_sbindir}/xen*
 %{_sbindir}/xl
-#%{_sbindir}/xm
-#%{_sbindir}/xsview
-%dir %{_libexecdir}/xen
-%{_libexecdir}/xen/*
 %{_prefix}/lib/modules-load.d/xen.conf
 %{_unitdir}/proc-xen.mount
 %{_unitdir}/var-lib-xenstored.mount
@@ -300,25 +239,20 @@ rm -rf %{buildroot}%{_prefix}/local
 %{_unitdir}/xendomains.service
 %{_unitdir}/xenstored.service
 %{_unitdir}/xendriverdomain.service
+%ifarch x86_64
+%{_prefix}/lib/debug/usr/libexec64/xen/boot/xen-shim-syms
+%endif
+%{_prefix}/lib/debug/xen-4.16.0.efi.map
 %{_mandir}/man1/*.gz
 %{_mandir}/man5/*.gz
+%{_mandir}/man7/xen*.7*
+%{_mandir}/man7/xl-numa-placement.7*
 %{_mandir}/man8/xentrace.8*
-%ifarch x86_64
-#%{_prefix}/lib/xen/bin/qemu-dm
-#%{_prefix}/lib//xen/bin/qemu-ga
-#%{_prefix}/lib/xen/bin/qemu-img
-#%{_prefix}/lib/xen/bin/qemu-io
-#%{_prefix}/lib/xen/bin/qemu-nbd
-#%{_prefix}/lib/xen/bin/qemu-system-i386
-#%{_prefix}/lib/xen/bin/xenpaging
-#%{_datadir}/xen/man/man1/qemu-img.1
-#%{_datadir}/xen/man/man1/qemu.1
-#%{_datadir}/xen/man/man8/qemu-nbd.8
+%ifnarch %{ix86}
+%dir %{_datadir}/gocode/src/golang.xenproject.org
+%dir %{_datadir}/gocode/src/golang.xenproject.org/xenlight
+%{_datadir}/gocode/src/golang.xenproject.org/xenlight/*
 %endif
-#%{_datadir}/xen/create.dtd
-%dir %{_datadir}/xen
-%dir %{_datadir}/xen/qemu
-%{_datadir}/xen/qemu/*
 %dir %{_datadir}/qemu-xen
 %{_datadir}/qemu-xen/*
 %{_docdir}/xen/*
@@ -326,57 +260,44 @@ rm -rf %{buildroot}%{_prefix}/local
 
 %files -n libxen
 %defattr(-,root,root)
-%{_libdir}/fs/ext2fs-lib/fsimage.so
-%{_libdir}/fs/fat/fsimage.so
-%{_libdir}/fs/iso9660/fsimage.so
-%{_libdir}/fs/reiserfs/fsimage.so
-%{_libdir}/fs/ufs/fsimage.so
-%{_libdir}/fs/xfs/fsimage.so
-%{_libdir}/fs/zfs/fsimage.so
-#%{_libdir}/libblktap.so.*
-%{_libdir}/libblktapctl.so.*
-#%{_libdir}/libflask.so.*
-%{_libdir}/libfsimage.so.*
-%{_libdir}/libvhd.so.*
 %{_libdir}/libxen*.so.*
 %{_libdir}/libxlutil.so.*
+%ifarch x86_64
+%{_libdir}/efi/xen*.efi
+%endif
+%ifarch %{ix86}
+%{_libdir}64/efi/xen*.efi
+%endif
+%dir %{_libdir}/xenfsimage
+%{_libdir}/xenfsimage/*
+%dir %{_libexecdir}/xen
+%{_libexecdir}/xen/*
 #%{_libdir}/ocaml/site-lib/*
 #%dir %{_libdir}/xen
 #%dir %{_libdir}/xen/bin
-#%{_libdir}/xen/bin/*
-#%dir %{_prefix}/lib/xen/boot
-#%{_prefix}/lib/xen/boot/hvmloader
 
 %files -n libxen-devel
 %defattr(-,root,root)
 %{_includedir}/*
-#%{_libdir}/libblktap.a
-#%{_libdir}/libblktap.so
-%{_libdir}/libblktapctl.a
-%{_libdir}/libblktapctl.so
-#%{_libdir}/libflask.a
-#%{_libdir}/libflask.so
-%{_libdir}/libfsimage.so
-%{_libdir}/libvhd.a
-%{_libdir}/libvhd.so
 %{_libdir}/libx*.a
 %{_libdir}/libx*.so
-%{_libdir}/libxlutil.a
-%{_libdir}/libxlutil.so
 %{_prefix}/lib/debug/xen-syms-%{version}*
-%{_datadir}/pkgconfig/xenlight.pc
-%{_datadir}/pkgconfig/xlutil.pc
+%{_libdir}/pkgconfig/xen*.pc
+%{_libdir}/pkgconfig/xlutil.pc
 
 %files -n python-xen
 %defattr(-,root,root)
-%dir %{python_sitearch}/xen
-%{python_sitearch}/xen/*
-%{python_sitearch}/fsimage.so
-%{python_sitearch}/grub/*
-%{python_sitearch}/pygrub-*.egg-info
-%{python_sitearch}/xen-*.egg-info
+%dir %{python3_sitearch}/xen
+%{python3_sitearch}/xen/*
+%{python3_sitearch}/xen-*.egg-info
+%{python3_sitearch}/xenfsimage.cpython-*.so
+%{python3_sitearch}/grub/*
+%{python3_sitearch}/pygrub-*.egg-info
 
 %changelog
+* Sun Dec 26 2021 Automatic Build System <autodist@mambasoft.it> 4.16.0-1mamba
+- automatic version update by autodist
+
 * Sat Dec 10 2016 Silvan Calarco <silvan.calarco@mambasoft.it> 4.8.0-1mamba
 - update to 4.8.0
 - fixed error in grub.d file