diff --git a/libportmidi.spec b/libportmidi.spec
index c703a30..d2f3ccf 100644
--- a/libportmidi.spec
+++ b/libportmidi.spec
@@ -1,6 +1,6 @@
 Name:          libportmidi
-Version:       235.1
-Release:       1mamba
+Version:       236
+Release:       2mamba
 Summary:       A library supporting real-time input and output of MIDI data using a system-independent interface
 Group:         System/Libraries
 Vendor:        openmamba
@@ -14,7 +14,14 @@ License:       GPL
 BuildRequires: glibc-devel
 BuildRequires: libalsa-devel
 ## AUTOBUILDREQ-END
-#Provides:      libporttime.so
+%ifarch %{ix86} arm
+Provides:      libporttime.so
+Provides:      libportmidi.so
+%endif
+%ifarch x86_64 aarch64
+Provides:      libporttime.so()(64bit)
+Provides:      libportmidi.so()(64bit)
+%endif
 
 %description
 PortMidi is a library for software developers. It supports real-time input and output of MIDI data using a system-independent interface. PortMidi runs on Windows (using MME), Macintosh (using CoreMIDI), and Linux (using ALSA).
@@ -65,12 +72,11 @@ sed -i "s|lib/cmake/PortMidi|%{_lib}/cmake/PortMidi|" CMakeLists.txt
 
 %files
 %defattr(-,root,root)
-#%{_bindir}/pmdefaults
-#%{_libdir}/libpmjni.so
+%{_libdir}/libportmidi.so.*
+%{_libdir}/libporttime.so.*
 %{_libdir}/libportmidi.so
 %{_libdir}/libporttime.so
-#%{_datadir}/java/pmdefaults.jar
-#%doc license.txt
+%doc license.txt
 
 %files devel
 %defattr(-,root,root)
@@ -82,6 +88,12 @@ sed -i "s|lib/cmake/PortMidi|%{_lib}/cmake/PortMidi|" CMakeLists.txt
 %{_libdir}/cmake/PortMidi/PortMidi*.cmake
 
 %changelog
+* Sun Oct 17 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 236-2mamba
+- provide legacy libportmidi.so and libporttime.so
+
+* Sun Aug 15 2021 Automatic Build System <autodist@mambasoft.it> 236-1mamba
+- automatic version update by autodist
+
 * Sat Jul 17 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 235.1-1mamba
 - update to 235.1