diff --git a/Processes/QGSJetII/Interaction.cc b/Processes/QGSJetII/Interaction.cc
index b3a3ad690042e9b4609923d33496334860a35bf2..20e91242c1790cbf3fc6dd02e4caec5c5a9b6c9a 100644
--- a/Processes/QGSJetII/Interaction.cc
+++ b/Processes/QGSJetII/Interaction.cc
@@ -1,5 +1,5 @@
 /*
- * (c) Copyright 2018 CORSIKA Project, corsika-project@lists.kit.edu
+ * (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
  *
  * See file AUTHORS for a list of contributors.
  *
@@ -64,7 +64,7 @@ namespace corsika::process::qgsjetII {
     }
   }
 
-  tuple<units::si::CrossSectionType, units::si::CrossSectionType>
+  units::si::CrossSectionType
   Interaction::GetCrossSection(const particles::Code BeamId,
                                const particles::Code TargetId,
                                const units::si::HEPEnergyType CoMenergy,
@@ -106,7 +106,7 @@ namespace corsika::process::qgsjetII {
       sigProd = qgsect_(dEcm, iBeam, iProjectile, iTarget);
     }
 
-    return std::make_tuple(sigProd * 1_mb, 0_mb);
+    return sigProd * 1_mb;
   }
 
   template <>
diff --git a/Processes/QGSJetII/Interaction.h b/Processes/QGSJetII/Interaction.h
index 8404a406135b65e819999e32c67779bd4d546e89..c66c35c221798babd3a825830b6473cb7e7e8f69 100644
--- a/Processes/QGSJetII/Interaction.h
+++ b/Processes/QGSJetII/Interaction.h
@@ -1,5 +1,5 @@
 /*
- * (c) Copyright 2018 CORSIKA Project, corsika-project@lists.kit.edu
+ * (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
  *
  * See file AUTHORS for a list of contributors.
  *
@@ -17,7 +17,6 @@
 #include <corsika/units/PhysicalUnits.h>
 
 #include <string>
-#include <tuple>
 
 namespace corsika::process::qgsjetII {
 
@@ -45,7 +44,7 @@ namespace corsika::process::qgsjetII {
              corsika::particles::IsNucleus(TargetId);
     }
 
-    std::tuple<corsika::units::si::CrossSectionType, corsika::units::si::CrossSectionType>
+    corsika::units::si::CrossSectionType
     GetCrossSection(const corsika::particles::Code, const corsika::particles::Code,
                     const corsika::units::si::HEPEnergyType, const unsigned int Abeam = 0,
                     const unsigned int Atarget = 0) const;
diff --git a/Processes/QGSJetII/ParticleConversion.cc b/Processes/QGSJetII/ParticleConversion.cc
index a18d5673723e573034048c929abbb75e9a08a1ac..266ebc5567671acc0616a7a84f83f2201ddbb15f 100644
--- a/Processes/QGSJetII/ParticleConversion.cc
+++ b/Processes/QGSJetII/ParticleConversion.cc
@@ -1,5 +1,5 @@
 /*
- * (c) Copyright 2018 CORSIKA Project, corsika-project@lists.kit.edu
+ * (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
  *
  * See file AUTHORS for a list of contributors.
  *
diff --git a/Processes/QGSJetII/ParticleConversion.h b/Processes/QGSJetII/ParticleConversion.h
index 382626cf7146111073c2cbefb8b3f9673ed36c73..f6efcc84c2c0925dd519b61166ae0db8f752b734 100644
--- a/Processes/QGSJetII/ParticleConversion.h
+++ b/Processes/QGSJetII/ParticleConversion.h
@@ -1,5 +1,5 @@
 /*
- * (c) Copyright 2018 CORSIKA Project, corsika-project@lists.kit.edu
+ * (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
  *
  * See file AUTHORS for a list of contributors.
  *
diff --git a/Processes/QGSJetII/QGSJetIIFragmentsStack.h b/Processes/QGSJetII/QGSJetIIFragmentsStack.h
index 958327703958324645c209b938a8a1c67b46c001..7704c19fc058ea82198b7a0462467624b5de1c3a 100644
--- a/Processes/QGSJetII/QGSJetIIFragmentsStack.h
+++ b/Processes/QGSJetII/QGSJetIIFragmentsStack.h
@@ -1,5 +1,5 @@
 /*
- * (c) Copyright 2018 CORSIKA Project, corsika-project@lists.kit.edu
+ * (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
  *
  * See file AUTHORS for a list of contributors.
  *
diff --git a/Processes/QGSJetII/QGSJetIIStack.h b/Processes/QGSJetII/QGSJetIIStack.h
index 5f7ea3550e9f1e4dae03f78d2133b446b1c19327..b0738a634ffab28408ebe97bd4af327ef38ce425 100644
--- a/Processes/QGSJetII/QGSJetIIStack.h
+++ b/Processes/QGSJetII/QGSJetIIStack.h
@@ -1,5 +1,5 @@
 /*
- * (c) Copyright 2018 CORSIKA Project, corsika-project@lists.kit.edu
+ * (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
  *
  * See file AUTHORS for a list of contributors.
  *
diff --git a/Processes/QGSJetII/code_generator.py b/Processes/QGSJetII/code_generator.py
index daa3a7d7520464fd763b35e2dba2e111f2b261a5..cd4265b3427e16123c64f1a3bc211afbd08afc38 100755
--- a/Processes/QGSJetII/code_generator.py
+++ b/Processes/QGSJetII/code_generator.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 
-# (c) Copyright 2018-2019 CORSIKA Project, corsika-project@lists.kit.edu
+# (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
 #
 # See file AUTHORS for a list of contributors.
 #
diff --git a/Processes/QGSJetII/qgsjet-II-04.cc b/Processes/QGSJetII/qgsjet-II-04.cc
index 2e716cf6231a5dfd710006fdf39dece200069be4..29dd694a12576b9b45743281eebc0ae093f0bede 100644
--- a/Processes/QGSJetII/qgsjet-II-04.cc
+++ b/Processes/QGSJetII/qgsjet-II-04.cc
@@ -1,5 +1,5 @@
 /*
- * (c) Copyright 2018 CORSIKA Project, corsika-project@lists.kit.edu
+ * (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
  *
  * See file AUTHORS for a list of contributors.
  *
diff --git a/Processes/QGSJetII/qgsjet-II-04.h b/Processes/QGSJetII/qgsjet-II-04.h
index 94dd9ef971ac53d199dbee49f2011ee04d38ba08..352ce650dc845e3c2f30dba35eadc7d637e65eaa 100644
--- a/Processes/QGSJetII/qgsjet-II-04.h
+++ b/Processes/QGSJetII/qgsjet-II-04.h
@@ -1,5 +1,5 @@
 /*
- * (c) Copyright 2019 CORSIKA Project, corsika-project@lists.kit.edu
+ * (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
  *
  * See file AUTHORS for a list of contributors.
  *
diff --git a/Processes/QGSJetII/testQGSJetII.cc b/Processes/QGSJetII/testQGSJetII.cc
index e084fc88852428e8d6a9baaf6ee214bf4ee89e15..8d6ce61cf98338c38e3cf8e9d968ce96c57d74fe 100644
--- a/Processes/QGSJetII/testQGSJetII.cc
+++ b/Processes/QGSJetII/testQGSJetII.cc
@@ -1,5 +1,5 @@
 /*
- * (c) Copyright 2019 CORSIKA Project, corsika-project@lists.kit.edu
+ * (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
  *
  * See file AUTHORS for a list of contributors.
  *