diff --git a/firebird.spec b/firebird.spec
index 458c630..a8235b2 100644
--- a/firebird.spec
+++ b/firebird.spec
@@ -5,7 +5,7 @@
 %define        major_ %(echo %version | cut -d. -f 1-3 | tr . _)
 %define        majver %(echo %version | cut -d. -f 1-2)
 Name:          firebird
-Version:       3.0.3.32900
+Version:       3.0.7.33374
 Release:       1mamba
 Summary:       SQL Relational Database
 Group:         Applications/Databases
@@ -54,8 +54,7 @@ Provides:      Firebird
 Obsoletes:     Firebird
 %systemd_requires
 Provides:      firebird-classic
-Obsoletes:     firebird-classic
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+Obsoletes:     firebird-classic < 3.0.7.33374
 
 %description
 %{name} is a relational database offering many ANSI SQL standard features that runs on Linux, Windows, and a variety of Unix platforms. %{name} offers excellent concurrency, high performance,and powerful language support for stored procedures and triggers. It has been used in production systems, under a variety of names, since 1981.
@@ -67,26 +66,22 @@ Summary:      Classic (xinetd) server for %{name} SQL RDBMS
 Requires:     xinetd
 Requires:     %{name} = %{version}-%{release}
 Conflicts:    %{name}-superserver
-#Requires:     libfbembed-%{name} = %{version}-%{release}
 Provides:      Firebird-classic
-Obsoletes:     Firebird-classic
+Obsoletes:     Firebird-classic < 3.0.7.33374
 
 %description   classic
 %{name} is a relational database offering many ANSI SQL standard features that runs on Linux, Windows, and a variety of Unix platforms.
-
 This is the classic (xinetd) server %{name} SQL RDBMS. It can also be used as an embedded server, when paired with the client-embedded package.
 
 %package        devel
 Group:          Applications/Databases
 Summary:        Development Libraries for %{name} SQL RDBMS
 Requires:       libfbclient = %{version}-%{release}
-#Requires:       libfbembed-%{name} = %{version}-%{release}
 Provides:       Firebird-devel
-Obsoletes:      Firebird-devel
+Obsoletes:      Firebird-devel < 3.0.7.33374
 
 %description    devel
 %{name} is a relational database offering many ANSI SQL standard features that runs on Linux, Windows, and a variety of Unix platforms.
-
 This package contains development libraries for %{name}.
 
 %package doc
@@ -94,37 +89,34 @@ Group:         Documentation
 Summary:       Documentation for %{name}
 Requires:      %{name} = %{?epoch:%epoch:}%{version}-%{release}
 Provides:      Firebird-doc
-Obsoletes:     Firebird-doc
+Obsoletes:     Firebird-doc < 3.0.7.33374
 
 %description doc
 %{name} is a relational database offering many ANSI SQL standard features that runs on Linux, Windows, and a variety of Unix platforms.
-
 This package contains documentation for %{name}.
 
 %package -n libfbclient
 Group:         System/Libraries
 Summary:       Multi-threaded, non-local client libraries for Firebird SQL RDBMS
 Provides:      libfbclient-Firebird
-Obsoletes:     libfbclient-Firebird
+Obsoletes:     libfbclient-Firebird < 3.0.7.33374
 Provides:      libfbclient-firebird
-Obsoletes:     libfbclient-firebird
+Obsoletes:     libfbclient-firebird < 3.0.7.33374
 
 %description -n libfbclient
 %{name} is a relational database offering many ANSI SQL standard features that runs on Linux, Windows, and a variety of Unix platforms.
-
 This package contains multi-threaded, non-local client libraries for Firebird SQL Database
 
 %package -n libfbembed
 Group:         System/Libraries
 Summary:       Multi-process, local client libraries for Firebird SQL RDBMS
 Provides:      libfbembed-Firebird
-Obsoletes:     libfbembed-Firebird
+Obsoletes:     libfbembed-Firebird < 3.0.7.33374
 Provides:      libfbembed-firebird
-Obsoletes:     libfbembed-firebird
+Obsoletes:     libfbembed-firebird < 3.0.7.33374
 
 %description -n libfbembed
 %{name} is a relational database offering many ANSI SQL standard features that runs on Linux, Windows, and a variety of Unix platforms.
-
 This package contains multi-process, local client libraries for Firebird SQL RDBMS
 
 %package        superserver
@@ -133,28 +125,23 @@ Summary:        Superserver (single process) server for %{name} SQL RDBMS
 Requires:       %{name} = %{?epoch:%epoch:}%{version}-%{release}
 #Conflicts:      %{name}-classic
 Provides:       Firebird-superserver
-Obsoletes:      Firebird-superserver
+Obsoletes:      Firebird-superserver < 3.0.7.33374
 
 %description  superserver
 %{name} is a relational database offering many ANSI SQL standard features that runs on Linux, Windows, and a variety of Unix platforms.
-
 This is the Superserver (single process) %{name} SQL RDBMS.
 
+%debug_package
 
 %prep
 %setup -q -n Firebird-%{version}-0
 #-D -T
 #:<< __EOF
-#%patch10 -p1
-#%patch11 -p0
-%patch12 -p1
+#%patch12 -p1
+./autogen.sh
 
 %build
 #:<< __EOF
-# build superserver
-./autogen.sh
-#autoreconf -vfi
-#autoreconf
 %configure \
    --prefix=%{_prefix} \
    --with-fbbin=%{_bindir} \
@@ -181,8 +168,9 @@ This is the Superserver (single process) %{name} SQL RDBMS.
 
 #chmod u+w gen/* -R
 
-# FIXME: 3.0.1.32609 segfaults when creating fdb files
-%make -j1 CXXFLAGS='-flifetime-dse=1'
+## FIXME: 3.0.1.32609 segfaults when creating fdb files
+##-j1 CXXFLAGS='-flifetime-dse=1'
+%make
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
@@ -337,6 +325,9 @@ exit 0
 #%doc doc/license/README.license.usage.txt
 
 %changelog
+* Tue Jun 15 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 3.0.7.33374-1mamba
+- update to 3.0.7.33374
+
 * Fri May 04 2018 Silvan Calarco <silvan.calarco@mambasoft.it> 3.0.3.32900-1mamba
 - update to 3.0.3.32900