diff --git a/linpsk-comparison.patch b/linpsk-comparison.patch
deleted file mode 100644
index 2ff0723..0000000
--- a/linpsk-comparison.patch
+++ /dev/null
@@ -1,35 +0,0 @@
-diff --git a/gui/crxdisplay.cpp b/gui/crxdisplay.cpp
-index 704207d..792876d 100644
---- a/gui/crxdisplay.cpp
-+++ b/gui/crxdisplay.cpp
-@@ -78,7 +78,7 @@ bool CRxDisplay::start_process_loop()
-         Sound = new WaveInput ( -1 );
-     else
-       Sound = new CSound ( settings.serial );
--    if ( Sound <= NULL )
-+    if ( Sound == NULL )
-       return false;
- 
-     connect ( Sound, SIGNAL ( samplesAvailable() ), this, SLOT ( process_rxdata() ) );
-diff --git a/gui/linpsk.cpp b/gui/linpsk.cpp
-index 5c8ff80..d6c6c0a 100644
---- a/gui/linpsk.cpp
-+++ b/gui/linpsk.cpp
-@@ -410,7 +410,7 @@ void LinPSK::startTx()
-       Modulator = new BpskModulator ( 11025, Frequency, TxBuffer );
-       break; */
-   }
--  if ( Sound <= NULL ) // Only create Sound Device once for output
-+  if ( Sound == NULL ) // Only create Sound Device once for output
-   {
-     if ( settings.DemoMode )
-     {
-@@ -421,7 +421,7 @@ void LinPSK::startTx()
-       Sound = new CSound ( settings.serial );
-     connect ( Sound, SIGNAL ( samplesAvailable() ), this, SLOT ( process_txdata() ) );
-   }
--  if ( Sound <= NULL )
-+  if ( Sound == NULL )
-   {
-     QMessageBox::critical ( 0, " Programm Error! LinPsk", "Could not create Sound Device for Output" );
-     TxDisplay->TxFunctions->setStatus ( ON );
diff --git a/linpsk.spec b/linpsk.spec
index f5b640e..f72b8e1 100644
--- a/linpsk.spec
+++ b/linpsk.spec
@@ -1,10 +1,9 @@
 Name:           linpsk
 Version:        1.3.5
-Release:        20%{?dist}
+Release:        6%{?dist}
 Summary:        Psk31 and RTTY program for Linux
 
-# Automatically converted from old format: GPLv2+ - review is highly recommended.
-License:        GPL-2.0-or-later
+License:        GPLv2+
 URL:            http://linpsk.sourceforge.net/
 Source0:        http://downloads.sourceforge.net/%{name}/%{name}-%{version}.tar.gz
 # Add .desktop file
@@ -16,14 +15,12 @@ Source3:        %{name}_64x64.png
 
 # Patch asoundrc file for default sound card (device 0)
 Patch0:         linpsk-1.1-3.sound.conf.patch
-Patch1:         linpsk-comparison.patch
 
 
 BuildRequires:  fftw-devel
 BuildRequires:  qt-devel
 BuildRequires:  alsa-lib-devel
 BuildRequires:  desktop-file-utils
-BuildRequires: make
 
 #Requires:
 
@@ -49,8 +46,7 @@ At the Moment RTTY only supports 45 baud and 1.5 stop-bits.
 #fix permissions for debuginfo files
 chmod 0644 src/{rttydemodulator.cpp,rttydemodulator.h}
 
-%patch -P0 -p1 -b 3.sound.conf
-%patch -P1 -p1 -b comparison
+%patch0 -p1 -b 3.sound.conf
 
 %build
 %{qmake_qt4} -unix -o Makefile %{name}.pro
@@ -92,48 +88,6 @@ find %{buildroot} -type f -name "*.a" -exec rm -f {} ';'
 %{_libexecdir}/%{name}-bin
 
 %changelog
-* Thu Jul 24 2025 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.5-20
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild
-
-* Fri Jan 17 2025 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.5-19
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild
-
-* Fri Jul 26 2024 Miroslav Suchý <msuchy@redhat.com> - 1.3.5-18
-- convert license to SPDX
-
-* Thu Jul 18 2024 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.5-17
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild
-
-* Thu Jan 25 2024 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.5-16
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild
-
-* Sun Jan 21 2024 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.5-15
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild
-
-* Thu Jul 20 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.5-14
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild
-
-* Thu Jan 19 2023 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.5-13
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild
-
-* Thu Jul 21 2022 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.5-12
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild
-
-* Thu Jan 20 2022 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.5-11
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild
-
-* Thu Jul 22 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.5-10
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild
-
-* Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.5-9
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
-
-* Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.5-8
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
-
-* Mon Jul 27 2020 Jeff Law <law@redhat.com> - 1.3.5-7
-- Avoid ordered pointer comparison against 0 which is an error in C++17
-
 * Wed Jan 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.5-6
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild