diff --git a/ardour.spec b/ardour.spec
index 9d8c2af..6d8c41d 100644
--- a/ardour.spec
+++ b/ardour.spec
@@ -1,6 +1,7 @@
+%define MAJver %(echo %version | cut -d. -f 1)
 %define majversion %(echo %version | cut -d. -f 1-2)
 Name:          ardour
-Version:       3.5.403
+Version:       4.0.0
 Release:       1mamba
 Summary:       A digital audio workstation you can use to record, edit and mix multi-track audio
 Group:         Graphical Desktop/Applications/Multimedia
@@ -8,7 +9,7 @@ Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           http://www.ardour.org
-Source:        http://www.ardour.org/files/releases/Ardour3-%{version}.tar.bz2
+Source:        http://www.ardour.org/files/releases/Ardour-%{version}.tar.bz2
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
@@ -64,7 +65,7 @@ Ardour is a digital audio workstation. You can use it to record, edit and mix mu
 Ardour capabilities include: multichannel recording, non-linear, non-destructive region based editing with unlimited undo/redo, full automation support, a mixer whose capabilities rival high end hardware consoles, lots of plugins to warp, shift and shape your music, and controllable from hardware control surfaces at the same time as it syncs to timecode. If you've been looking for a tool similar to ProTools, Nuendo, Cubase SX or Sequoia, you might have found it.
 
 %prep
-%setup -q -n Ardour3-%{version}
+%setup -q -n Ardour-%{version}
 
 %build
 ./waf configure \
@@ -88,14 +89,14 @@ GenericName=A digital audio workstation
 GenericName[it]=Una workstation per l'audio digitale
 Comment=With ardour you can record, edit and mix multi-track audio
 Comment[it]=Con ardour puoi registrare, editare e mixare audio multitraccia 
-Exec=ardour3
+Exec=ardour
 Type=Application
 Terminal=0
 Icon=ardour3
 Categories=Qt;KDE;AudioVideo;
 EOF
 
-install -D icons/icon/ardour_icon_tango_32px_blue.png %{buildroot}%{_datadir}/pixmaps/ardour3.png
+install -D icons/icon/ardour_icon_tango_32px_blue.png %{buildroot}%{_datadir}/pixmaps/ardour.png
 
 #%find_lang gtk2_ardour3
 #%find_lang ardour3
@@ -108,32 +109,38 @@ install -D icons/icon/ardour_icon_tango_32px_blue.png %{buildroot}%{_datadir}/pi
 %files
 #-f %{name}.lang
 %defattr(-,root,root)
-%dir %{_sysconfdir}/ardour3
-%config %{_sysconfdir}/ardour3/*
-%{_bindir}/ardour3
-%{_datadir}/pixmaps/ardour3.png
-%dir %{_libdir}/ardour3
-%{_libdir}/ardour3/*.so*
-%{_libdir}/ardour3/ardour-*
-%dir %{_libdir}/ardour3/backends
-%{_libdir}/ardour3/backends/libjack_audiobackend.so*
-%dir %{_libdir}/ardour3/engines
-%{_libdir}/ardour3/engines/libclearlooks.so*
-%dir %{_libdir}/ardour3/panners
-%{_libdir}/ardour3/panners/libpan*.so*
-%dir %{_libdir}/ardour3/surfaces
-%{_libdir}/ardour3/surfaces/libardour_*.so*
-%dir %{_libdir}/ardour3/vamp
-%{_libdir}/ardour3/vamp/libardourvampplugins.so*
-%{_libdir}/ardour3/sanityCheck
-%dir %{_libdir}/lv2/reasonablesynth.lv2
-%{_libdir}/lv2/reasonablesynth.lv2/*
-%dir %{_datadir}/ardour3
-%{_datadir}/ardour3/*
+%dir %{_sysconfdir}/ardour%{MAJver}
+%config %{_sysconfdir}/ardour%{MAJver}/*
+%{_bindir}/ardour%{MAJver}
+%{_datadir}/pixmaps/ardour.png
+%dir %{_libdir}/ardour%{MAJver}
+%{_libdir}/ardour%{MAJver}/*.so*
+%{_libdir}/ardour%{MAJver}/ardour-*
+%{_libdir}/ardour%{MAJver}/hardour-4.0.0
+%{_libdir}/ardour%{MAJver}/libsmf.a
+%dir %{_libdir}/ardour%{MAJver}/backends
+%{_libdir}/ardour%{MAJver}/backends/libjack_audiobackend.so*
+%dir %{_libdir}/ardour%{MAJver}/engines
+%{_libdir}/ardour%{MAJver}/engines/libclearlooks.so*
+%dir %{_libdir}/ardour%{MAJver}/panners
+%{_libdir}/ardour%{MAJver}/panners/libpan*.so*
+%dir %{_libdir}/ardour%{MAJver}/surfaces
+%{_libdir}/ardour%{MAJver}/surfaces/libardour_*.so*
+%dir %{_libdir}/ardour%{MAJver}/vamp
+%{_libdir}/ardour%{MAJver}/vamp/libardourvampplugins.so*
+%{_libdir}/ardour%{MAJver}/sanityCheck
+%dir %{_libdir}/ardour%{MAJver}/lv2
+%dir %{_libdir}/ardour%{MAJver}/lv2/reasonablesynth.lv2
+%{_libdir}/ardour%{MAJver}/lv2/reasonablesynth.lv2/*
+%dir %{_datadir}/ardour%{MAJver}
+%{_datadir}/ardour%{MAJver}/*
 %{_datadir}/applications/ardour.desktop
 #%doc COPYING
 
 %changelog
+* Fri May 22 2015 Silvan Calarco <silvan.calarco@mambasoft.it> 4.0.0-1mamba
+- update to 4.0.0
+
 * Thu Oct 09 2014 Silvan Calarco <silvan.calarco@mambasoft.it> 3.5.403-1mamba
 - update to 3.5.403