diff --git a/claws-mail.spec b/claws-mail.spec
index c1f3acb..970d692 100644
--- a/claws-mail.spec
+++ b/claws-mail.spec
@@ -1,7 +1,7 @@
 %define _distrib_milestone %(echo %_distrib_codename | cut -d- -f1)
 Name:          claws-mail
-Version:       3.17.8
-Release:       2mamba
+Version:       4.0.0
+Release:       1mamba
 Summary:       An email client (and news reader)
 Group:         Graphical Desktop/Applications/Internet
 Vendor:        openmamba
@@ -13,7 +13,6 @@ License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
 BuildRequires: gnome-online-accounts-devel
-BuildRequires: ldconfig
 BuildRequires: libICE-devel
 BuildRequires: libSM-devel
 BuildRequires: libX11-devel
@@ -24,7 +23,6 @@ BuildRequires: libacl-devel
 BuildRequires: libarchive-devel
 BuildRequires: libassuan-devel
 BuildRequires: libatk-devel
-BuildRequires: libattr-devel
 BuildRequires: libblkid-devel
 BuildRequires: libbrotli-devel
 BuildRequires: libbsd-devel
@@ -33,7 +31,7 @@ BuildRequires: libcairo-devel
 BuildRequires: libcanberra-devel
 BuildRequires: libcares-devel
 BuildRequires: libcurl-devel
-BuildRequires: libdb51
+BuildRequires: libdb53-devel
 BuildRequires: libdbus-devel
 BuildRequires: libdbus-glib-devel
 BuildRequires: libe2fs-devel
@@ -51,11 +49,12 @@ BuildRequires: libgnutls-devel
 BuildRequires: libgpg-error-devel
 BuildRequires: libgpgme-devel
 BuildRequires: libgraphite2-devel
+BuildRequires: libgsasl-devel
 BuildRequires: libgss-devel
-BuildRequires: libgtk2-devel
+BuildRequires: libgtk3-devel
 BuildRequires: libharfbuzz-devel
 BuildRequires: libical-devel
-BuildRequires: libicu-devel
+BuildRequires: libidn-devel
 BuildRequires: libidn2-devel
 BuildRequires: libjson-glib-devel
 BuildRequires: libkrb5-devel
@@ -68,6 +67,7 @@ BuildRequires: libnettle-devel
 BuildRequires: libnghttp2-devel
 BuildRequires: libnotify-devel
 BuildRequires: libnsl-devel
+BuildRequires: libntlm-devel
 BuildRequires: libogg-devel
 BuildRequires: libopenldap-devel
 BuildRequires: libopenssl-devel
@@ -95,6 +95,7 @@ BuildRequires: libtirpc-devel
 BuildRequires: libunistring-devel
 BuildRequires: libuuid-devel
 BuildRequires: libvorbis-devel
+BuildRequires: libwebkit2gtk-devel
 BuildRequires: libxcb-devel
 BuildRequires: libxml2-devel
 BuildRequires: libytnef-devel
@@ -103,7 +104,6 @@ BuildRequires: libzstd-devel
 ## AUTOBUILDREQ-END
 Provides:      claws-mail-plugin-fancy
 Obsoletes:     claws-mail-plugin-fancy
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 An email client (and news reader), based on GTK+.
@@ -169,9 +169,9 @@ This package contains libraries and header files for developing applications tha
 %{_libdir}/claws-mail/plugins/dillo.a
 %{_libdir}/claws-mail/plugins/dillo.la
 %{_libdir}/claws-mail/plugins/dillo.so
-#%{_libdir}/claws-mail/plugins/fancy.a
-#%{_libdir}/claws-mail/plugins/fancy.la
-#%{_libdir}/claws-mail/plugins/fancy.so
+%{_libdir}/claws-mail/plugins/fancy.a
+%{_libdir}/claws-mail/plugins/fancy.la
+%{_libdir}/claws-mail/plugins/fancy.so
 %{_libdir}/claws-mail/plugins/fetchinfo.a
 %{_libdir}/claws-mail/plugins/fetchinfo.la
 %{_libdir}/claws-mail/plugins/fetchinfo.so
@@ -255,6 +255,9 @@ This package contains libraries and header files for developing applications tha
 %{_libdir}/pkgconfig/claws-mail.pc
 
 %changelog
+* Thu Jul 29 2021 Automatic Build System <autodist@mambasoft.it> 4.0.0-1mamba
+- automatic version update by autodist
+
 * Sun Feb 07 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 3.17.8-2mamba
 - rebuilt without abandoned libpisock