diff --git a/kcolorpicker.spec b/kcolorpicker.spec
index b096275..aac1c2b 100644
--- a/kcolorpicker.spec
+++ b/kcolorpicker.spec
@@ -1,6 +1,6 @@
 Name:          kcolorpicker
-Version:       0.2.0
-Release:       1mamba
+Version:       0.3.0
+Release:       3mamba
 Summary:       Qt based Color Picker with popup menu
 Group:         Applications/Graphics
 Vendor:        openmamba
@@ -12,8 +12,10 @@ License:       LGPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
 BuildRequires: libgcc
+BuildRequires: libglvnd-devel
 BuildRequires: libstdc++6-devel
 BuildRequires: qt5-qtbase-devel
+BuildRequires: qt6-qtbase-devel
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
 Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
@@ -36,6 +38,21 @@ Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
 %description -n lib%{name}-devel
 This package contains libraries and header files for developing applications that use %{name}.
 
+%package -n lib%{name}-qt6
+Group:         System/Libraries
+Summary:       Shared libraries for %{name}
+
+%description -n lib%{name}-qt6
+This package contains shared libraries for %{name}.
+
+%package -n lib%{name}-qt6-devel
+Group:         Development/Libraries
+Summary:       Development files for %{name}
+Requires:      lib%{name}-qt6 = %{?epoch:%epoch:}%{version}-%{release}
+
+%description -n lib%{name}-qt6-devel
+This package contains libraries and header files for developing applications that use %{name}.
+
 
 %debug_package
 
@@ -45,10 +62,24 @@ This package contains libraries and header files for developing applications tha
 %build
 %cmake -d build
 %make
+cd ..
+
+%cmake -d build-qt6 \
+   -DBUILD_WITH_QT6=ON
+
+%make
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
 %makeinstall -C build
+%makeinstall -C build-qt6
+
+# Symlinks for backwards compatibility
+mkdir -p %{buildroot}%{_libdir}/cmake/kColorPicker
+ln -s ../kColorPicker-Qt5/kColorPicker-Qt5Config.cmake %{buildroot}%{_libdir}/cmake/kColorPicker/kColorPickerConfig.cmake
+ln -s ../kColorPicker-Qt5/kColorPicker-Qt5Config-version.cmake %{buildroot}%{_libdir}/cmake/kColorPicker/kColorPickerConfig-version.cmake
+ln -s ../kColorPicker-Qt5/kColorPicker-Qt5-targets.cmake %{buildroot}%{_libdir}/cmake/kColorPicker/
+ln -s ../kColorPicker-Qt5/kColorPicker-Qt5-targets-noconfig.cmake %{buildroot}%{_libdir}/cmake/kColorPicker/
 
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
@@ -58,18 +89,43 @@ This package contains libraries and header files for developing applications tha
 
 %files -n lib%{name}
 %defattr(-,root,root)
-%{_libdir}/libkColorPicker.so.*
+%{_libdir}/libkColorPicker-Qt5.so.*
 %doc LICENSE
 
 %files -n lib%{name}-devel
 %defattr(-,root,root)
-%dir %{_includedir}/kColorPicker
-%{_includedir}/kColorPicker/KColorPicker*.h
+%dir %{_includedir}/kColorPicker-Qt5
+%dir %{_includedir}/kColorPicker-Qt5/kColorPicker
+%{_includedir}/kColorPicker-Qt5/kColorPicker/*
+%{_libdir}/libkColorPicker-Qt5.so
 %dir %{_libdir}/cmake/kColorPicker
 %{_libdir}/cmake/kColorPicker/kColorPicker*.cmake
-%{_libdir}/libkColorPicker.so
+%dir %{_libdir}/cmake/kColorPicker-Qt5
+%{_libdir}/cmake/kColorPicker-Qt5/kColorPicker*.cmake
 %doc README.md
 
+%files -n lib%{name}-qt6
+%defattr(-,root,root)
+%{_libdir}/libkColorPicker-Qt6.so.*
+%doc LICENSE
+
+%files -n lib%{name}-qt6-devel
+%defattr(-,root,root)
+%dir %{_includedir}/kColorPicker-Qt6/kColorPicker
+%{_includedir}/kColorPicker-Qt6/kColorPicker/*
+%dir %{_libdir}/cmake/kColorPicker-Qt6
+%{_libdir}/cmake/kColorPicker-Qt6/kColorPicker-Qt6*.cmake
+%{_libdir}/libkColorPicker-Qt6.so
+
 %changelog
+* Sat Jan 27 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 0.3.0-3mamba
+- further fix of legacy symlinks
+
+* Sat Jan 27 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 0.3.0-2mamba
+- fixed legacy cmake symlinks
+
+* Fri Jan 19 2024 Automatic Build System <autodist@openmamba.org> 0.3.0-1mamba
+- automatic version update by autodist
+
 * Thu Aug 25 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 0.2.0-1mamba
 - package created using the webbuild interface