diff --git a/src/lib/ViZDoomController.cpp b/src/lib/ViZDoomController.cpp
index fba598129..b33f45b70 100644
--- a/src/lib/ViZDoomController.cpp
+++ b/src/lib/ViZDoomController.cpp
@@ -1,6 +1,7 @@
 /*
  Copyright (C) 2016 by Wojciech Jaśkowski, Michał Kempka, Grzegorz Runc, Jakub Toczek, Marek Wydmuch
  Copyright (C) 2017 - 2022 by Marek Wydmuch, Michał Kempka, Wojciech Jaśkowski, and the respective contributors
+ Copyright (C) 2023 - 2024 by Marek Wydmuch, Farama Foundation, and the respective contributors
 
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
@@ -57,7 +58,6 @@ namespace vizdoom {
         this->automapBuffer = nullptr;
 
         /* Threads */
-        this->signalThread = nullptr;
         this->doomThread = nullptr;
 
         /* Flow control */
diff --git a/src/lib/ViZDoomController.h b/src/lib/ViZDoomController.h
index f0140c1bf..ef29c21a5 100644
--- a/src/lib/ViZDoomController.h
+++ b/src/lib/ViZDoomController.h
@@ -1,6 +1,8 @@
 /*
  Copyright (C) 2016 by Wojciech Jaśkowski, Michał Kempka, Grzegorz Runc, Jakub Toczek, Marek Wydmuch
  Copyright (C) 2017 - 2022 by Marek Wydmuch, Michał Kempka, Wojciech Jaśkowski, and the respective contributors
+ Copyright (C) 2023 - 2024 by Marek Wydmuch, Farama Foundation, and the respective contributors
+
 
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
diff --git a/src/lib/ViZDoomExceptions.cpp b/src/lib/ViZDoomExceptions.cpp
index cda34a416..8085021b9 100644
--- a/src/lib/ViZDoomExceptions.cpp
+++ b/src/lib/ViZDoomExceptions.cpp
@@ -1,6 +1,7 @@
 /*
  Copyright (C) 2016 by Wojciech Jaśkowski, Michał Kempka, Grzegorz Runc, Jakub Toczek, Marek Wydmuch
  Copyright (C) 2017 - 2022 by Marek Wydmuch, Michał Kempka, Wojciech Jaśkowski, and the respective contributors
+ Copyright (C) 2023 - 2024 by Marek Wydmuch, Farama Foundation, and the respective contributors
 
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
@@ -44,12 +45,6 @@ namespace vizdoom {
         else return "Unknown shared memory error.";
     }
 
-    /* SignalException */
-    const char *SignalException::what() const throw() {
-        std::string what = "Signal " + this->signal + " received. ViZDoom instance has been closed.";
-        return strdup(what.c_str());
-    }
-
     /* ViZDoomErrorException */
     const char *ViZDoomErrorException::what() const throw() {
         if (this->error.length()) return this->error.c_str();
diff --git a/src/lib_python/ViZDoomPythonModule.cpp b/src/lib_python/ViZDoomPythonModule.cpp
index af8318c3f..7443ad949 100644
--- a/src/lib_python/ViZDoomPythonModule.cpp
+++ b/src/lib_python/ViZDoomPythonModule.cpp
@@ -1,6 +1,7 @@
 /*
  Copyright (C) 2016 by Wojciech Jaśkowski, Michał Kempka, Grzegorz Runc, Jakub Toczek, Marek Wydmuch
  Copyright (C) 2017 - 2022 by Marek Wydmuch, Michał Kempka, Wojciech Jaśkowski, and the respective contributors
+ Copyright (C) 2023 - 2024 by Marek Wydmuch, Farama Foundation, and the respective contributors
 
  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal