diff --git a/ci/appveyor/build_krb.bat b/ci/appveyor/build_krb.bat
index 4904d300..452437d6 100755
--- a/ci/appveyor/build_krb.bat
+++ b/ci/appveyor/build_krb.bat
@@ -1,3 +1,20 @@
+@REM This file is part of ssh-python.
+@REM Copyright (C) 2018-2025 Panos Kittenis.
+@REM Copyright (C) 2018-2025 ssh-python Contributors.
+@REM
+@REM This library is free software; you can redistribute it and/or
+@REM modify it under the terms of the GNU Lesser General Public
+@REM License as published by the Free Software Foundation, version 2.1.
+@REM
+@REM This library is distributed in the hope that it will be useful,
+@REM but WITHOUT ANY WARRANTY; without even the implied warranty of
+@REM MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+@REM Lesser General Public License for more details.
+@REM
+@REM You should have received a copy of the GNU Lesser General Public
+@REM License along with this library; if not, write to the Free Software
+@REM Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 refreshenv
 set KRB_INSTALL_DIR=%APPVEYOR_HOME_DIR%/src/lib
 set CPU=AMD64
diff --git a/ci/appveyor/build_ssh.bat b/ci/appveyor/build_ssh.bat
index aab30d10..ee15f288 100755
--- a/ci/appveyor/build_ssh.bat
+++ b/ci/appveyor/build_ssh.bat
@@ -1,3 +1,20 @@
+@REM This file is part of ssh-python.
+@REM Copyright (C) 2018-2025 Panos Kittenis.
+@REM Copyright (C) 2018-2025 ssh-python Contributors.
+@REM
+@REM This library is free software; you can redistribute it and/or
+@REM modify it under the terms of the GNU Lesser General Public
+@REM License as published by the Free Software Foundation, version 2.1.
+@REM
+@REM This library is distributed in the hope that it will be useful,
+@REM but WITHOUT ANY WARRANTY; without even the implied warranty of
+@REM MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+@REM Lesser General Public License for more details.
+@REM
+@REM You should have received a copy of the GNU Lesser General Public
+@REM License along with this library; if not, write to the Free Software
+@REM Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 IF "%PYTHON_VERSION%" == "2.7" (exit 0)
 
 mkdir src
diff --git a/ci/appveyor/build_zlib.bat b/ci/appveyor/build_zlib.bat
index be044e7c..1b6567c1 100755
--- a/ci/appveyor/build_zlib.bat
+++ b/ci/appveyor/build_zlib.bat
@@ -1,3 +1,20 @@
+@REM This file is part of ssh-python.
+@REM Copyright (C) 2018-2025 Panos Kittenis.
+@REM Copyright (C) 2018-2025 ssh-python Contributors.
+@REM
+@REM This library is free software; you can redistribute it and/or
+@REM modify it under the terms of the GNU Lesser General Public
+@REM License as published by the Free Software Foundation, version 2.1.
+@REM
+@REM This library is distributed in the hope that it will be useful,
+@REM but WITHOUT ANY WARRANTY; without even the implied warranty of
+@REM MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+@REM Lesser General Public License for more details.
+@REM
+@REM You should have received a copy of the GNU Lesser General Public
+@REM License along with this library; if not, write to the Free Software
+@REM Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 IF "%PYTHON_VERSION%" == "2.7" (exit 0)
 
 mkdir zlib_build && cd zlib_build
diff --git a/ci/appveyor/fix_version.py b/ci/appveyor/fix_version.py
index d8575bd3..fb317cd9 100644
--- a/ci/appveyor/fix_version.py
+++ b/ci/appveyor/fix_version.py
@@ -1,3 +1,20 @@
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 import os
 from datetime import datetime
 import subprocess
diff --git a/ci/appveyor/import_test.py b/ci/appveyor/import_test.py
index 70fc9266..5e473312 100644
--- a/ci/appveyor/import_test.py
+++ b/ci/appveyor/import_test.py
@@ -1,3 +1,20 @@
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 from __future__ import print_function
 import sys
 
diff --git a/ci/appveyor/pypi_upload.py b/ci/appveyor/pypi_upload.py
index 1537b3c4..c6771623 100644
--- a/ci/appveyor/pypi_upload.py
+++ b/ci/appveyor/pypi_upload.py
@@ -1,3 +1,20 @@
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 import sys
 import subprocess
 import os
diff --git a/ci/build-manylinux.sh b/ci/build-manylinux.sh
index 12c010ea..02586194 100755
--- a/ci/build-manylinux.sh
+++ b/ci/build-manylinux.sh
@@ -1,19 +1,20 @@
 #!/bin/bash -xe
-# This file is part of ssh-python.
-# Copyright (C) 2017-2022 Panos Kittenis and contributors.
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 tar -czf ci/docker/manylinux/libssh-${LIBSSH}.tar.gz libssh
 tar -czf ci/docker/manylinux/krb5-${KRB}.tar.gz krb5-${KRB}
diff --git a/ci/build-wheels.sh b/ci/build-wheels.sh
index f789bb0a..548c03ee 100755
--- a/ci/build-wheels.sh
+++ b/ci/build-wheels.sh
@@ -1,19 +1,20 @@
 #!/bin/bash -xe
-# This file is part of ssh-python.
-# Copyright (C) 2017-2022 Panos Kittenis and contributors.
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 # Compile wheels
 rm -rf /io/build
diff --git a/ci/docker/manylinux/Dockerfile.2014_x86_64 b/ci/docker/manylinux/Dockerfile.2014_x86_64
index 3e280b65..690828b0 100644
--- a/ci/docker/manylinux/Dockerfile.2014_x86_64
+++ b/ci/docker/manylinux/Dockerfile.2014_x86_64
@@ -1,3 +1,20 @@
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 FROM quay.io/pypa/manylinux2014_x86_64
 
 ENV OPENSSL=openssl-3.4.0
diff --git a/ci/docker/manylinux/Dockerfile.aarch64 b/ci/docker/manylinux/Dockerfile.aarch64
index af5b3c69..8cc26ce8 100644
--- a/ci/docker/manylinux/Dockerfile.aarch64
+++ b/ci/docker/manylinux/Dockerfile.aarch64
@@ -1,3 +1,20 @@
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 FROM quay.io/pypa/manylinux2014_aarch64
 
 ENV OPENSSL=openssl-3.4.0
diff --git a/ci/docker/manylinux/Dockerfile.aarch64_2_24 b/ci/docker/manylinux/Dockerfile.aarch64_2_24
index 1a2c0c5d..bc246e34 100644
--- a/ci/docker/manylinux/Dockerfile.aarch64_2_24
+++ b/ci/docker/manylinux/Dockerfile.aarch64_2_24
@@ -1,3 +1,20 @@
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 FROM quay.io/pypa/manylinux_2_24_aarch64
 
 ENV OPENSSL=openssl-3.4.0
diff --git a/ci/docker/manylinux/Dockerfile.aarch64_2_28 b/ci/docker/manylinux/Dockerfile.aarch64_2_28
index c2a6cdd3..5e479637 100644
--- a/ci/docker/manylinux/Dockerfile.aarch64_2_28
+++ b/ci/docker/manylinux/Dockerfile.aarch64_2_28
@@ -1,3 +1,20 @@
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 FROM quay.io/pypa/manylinux_2_28_aarch64
 
 ENV OPENSSL=openssl-3.4.0
diff --git a/ci/docker/manylinux/Dockerfile.manylinux_2_24_x86_64 b/ci/docker/manylinux/Dockerfile.manylinux_2_24_x86_64
index 3286cec3..3bdf4692 100644
--- a/ci/docker/manylinux/Dockerfile.manylinux_2_24_x86_64
+++ b/ci/docker/manylinux/Dockerfile.manylinux_2_24_x86_64
@@ -1,3 +1,20 @@
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 FROM quay.io/pypa/manylinux_2_24_x86_64
 
 ENV OPENSSL=openssl-3.4.0
diff --git a/ci/docker/manylinux/Dockerfile.manylinux_2_28_x86_64 b/ci/docker/manylinux/Dockerfile.manylinux_2_28_x86_64
index 77c2ddcf..5afb2866 100644
--- a/ci/docker/manylinux/Dockerfile.manylinux_2_28_x86_64
+++ b/ci/docker/manylinux/Dockerfile.manylinux_2_28_x86_64
@@ -1,3 +1,20 @@
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 FROM quay.io/pypa/manylinux_2_28_x86_64
 
 ENV OPENSSL=openssl-3.4.0
diff --git a/ci/integration_tests/__init__.py b/ci/integration_tests/__init__.py
index e69de29b..c1b9dac2 100644
--- a/ci/integration_tests/__init__.py
+++ b/ci/integration_tests/__init__.py
@@ -0,0 +1,16 @@
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
diff --git a/ci/integration_tests/base_case.py b/ci/integration_tests/base_case.py
index de48fc4e..2901a9aa 100644
--- a/ci/integration_tests/base_case.py
+++ b/ci/integration_tests/base_case.py
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018-2020 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 import os
 import socket
diff --git a/ci/integration_tests/test_channel.py b/ci/integration_tests/test_channel.py
index 40535867..e4e8fe7a 100644
--- a/ci/integration_tests/test_channel.py
+++ b/ci/integration_tests/test_channel.py
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 import unittest
 from pytest import mark
diff --git a/ci/integration_tests/test_session.py b/ci/integration_tests/test_session.py
index 85d18bbd..a4b49d47 100644
--- a/ci/integration_tests/test_session.py
+++ b/ci/integration_tests/test_session.py
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 import unittest
 import socket
diff --git a/ci/integration_tests/test_sftp.py b/ci/integration_tests/test_sftp.py
index af9ecafc..ae24308e 100644
--- a/ci/integration_tests/test_sftp.py
+++ b/ci/integration_tests/test_sftp.py
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 import unittest
 import os
diff --git a/ci/osx-wheel.sh b/ci/osx-wheel.sh
index 9899ed48..e047141c 100755
--- a/ci/osx-wheel.sh
+++ b/ci/osx-wheel.sh
@@ -1,19 +1,21 @@
 #!/bin/bash -xe
-# This file is part of ssh-python.
-# Copyright (C) 2017-2022 Panos Kittenis and contributors.
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 SYSTEM_LIBSSH_DIR="/opt/homebrew/opt/libssh/lib"
 MY_LIBSSH_DIR="local/lib"
 LIBSSH_INCLUDE_DIR="/opt/homebrew/opt/libssh/include"
diff --git a/setup.py b/setup.py
index d1b2e853..1f993d7a 100644
--- a/setup.py
+++ b/setup.py
@@ -1,3 +1,20 @@
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 import os
 import platform
 import sys
@@ -108,7 +125,7 @@
     url='https://github.com/ParallelSSH/ssh-python',
     license='LGPL-2.1-only',
     author='Panos Kittenis',
-    author_email='22e889d8@opayq.com',
+    author_email='danst@tutanota.com',
     description="libssh C library bindings for Python.",
     long_description=open('README.rst').read(),
     packages=find_packages(
diff --git a/ssh/__init__.pxd b/ssh/__init__.pxd
index e69de29b..c1b9dac2 100644
--- a/ssh/__init__.pxd
+++ b/ssh/__init__.pxd
@@ -0,0 +1,16 @@
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
diff --git a/ssh/__init__.py b/ssh/__init__.py
index 251da663..091ec25e 100644
--- a/ssh/__init__.py
+++ b/ssh/__init__.py
@@ -1,2 +1,19 @@
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 from . import _version
 __version__ = _version.get_versions()['version']
diff --git a/ssh/c_callbacks.pxd b/ssh/c_callbacks.pxd
index 1544c91f..0c02aa0d 100644
--- a/ssh/c_callbacks.pxd
+++ b/ssh/c_callbacks.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from .c_ssh cimport ssh_session, ssh_channel, ssh_buffer, ssh_string, \
     uint32_t, uint8_t, ssh_key_struct, ssh_auth_callback, ssh_message
diff --git a/ssh/c_legacy.pxd b/ssh/c_legacy.pxd
index 3e935c64..669ad3cb 100644
--- a/ssh/c_legacy.pxd
+++ b/ssh/c_legacy.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from .c_ssh cimport ssh_session, ssh_string, ssh_message, uint32_t, \
     ssh_keytypes_e
diff --git a/ssh/c_sftp.pxd b/ssh/c_sftp.pxd
index ad3f500e..417a2a6a 100644
--- a/ssh/c_sftp.pxd
+++ b/ssh/c_sftp.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from .c_ssh cimport uint64_t, uint32_t, uint8_t, ssh_string, ssh_buffer, \
     ssh_channel, ssh_session, timeval
diff --git a/ssh/c_ssh.pxd b/ssh/c_ssh.pxd
index 6bc15b79..69fa6d7d 100644
--- a/ssh/c_ssh.pxd
+++ b/ssh/c_ssh.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from libc.time cimport time_t
 from posix.types cimport mode_t, suseconds_t
diff --git a/ssh/c_ssh2.pxd b/ssh/c_ssh2.pxd
index 853f5aab..ba2aa234 100644
--- a/ssh/c_ssh2.pxd
+++ b/ssh/c_ssh2.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 cdef extern from "libssh/ssh2.h" nogil:
     enum:
diff --git a/ssh/callbacks.pxd b/ssh/callbacks.pxd
index 50dd14b7..8761f35a 100644
--- a/ssh/callbacks.pxd
+++ b/ssh/callbacks.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from . cimport c_callbacks
 
diff --git a/ssh/callbacks.pyx b/ssh/callbacks.pyx
index 33fb4bc8..123598d5 100644
--- a/ssh/callbacks.pyx
+++ b/ssh/callbacks.pyx
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from libc.stdlib cimport malloc, free
 from libc.string cimport memset
diff --git a/ssh/channel.pxd b/ssh/channel.pxd
index b934ee0e..c79f8dc1 100644
--- a/ssh/channel.pxd
+++ b/ssh/channel.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from .session cimport Session
 
diff --git a/ssh/channel.pyx b/ssh/channel.pyx
index 9ed207e4..3fa59ca1 100644
--- a/ssh/channel.pyx
+++ b/ssh/channel.pyx
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from libc.stdlib cimport malloc, free
 from libc.string cimport const_char
diff --git a/ssh/connector.pxd b/ssh/connector.pxd
index 43e3135b..3b175486 100644
--- a/ssh/connector.pxd
+++ b/ssh/connector.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from .session cimport Session
 
diff --git a/ssh/connector.pyx b/ssh/connector.pyx
index f7a4055b..cb095b6f 100644
--- a/ssh/connector.pyx
+++ b/ssh/connector.pyx
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from cpython cimport PyObject_AsFileDescriptor
 
diff --git a/ssh/error_codes.pyx b/ssh/error_codes.pyx
index 88ed8541..5fbbd5de 100644
--- a/ssh/error_codes.pyx
+++ b/ssh/error_codes.pyx
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from . cimport c_ssh
 
diff --git a/ssh/event.pxd b/ssh/event.pxd
index f4133ef4..053ed041 100644
--- a/ssh/event.pxd
+++ b/ssh/event.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from .session cimport Session
 from .connector cimport Connector
diff --git a/ssh/event.pyx b/ssh/event.pyx
index cef5c201..597bb3c6 100644
--- a/ssh/event.pyx
+++ b/ssh/event.pyx
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from cpython cimport PyObject_AsFileDescriptor
 
diff --git a/ssh/exceptions.pyx b/ssh/exceptions.pyx
index 482de6bd..b0600761 100644
--- a/ssh/exceptions.pyx
+++ b/ssh/exceptions.pyx
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 
 class OptionError(Exception):
diff --git a/ssh/key.pxd b/ssh/key.pxd
index 19c5e68c..55c53c15 100644
--- a/ssh/key.pxd
+++ b/ssh/key.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from . cimport c_ssh
 
diff --git a/ssh/key.pyx b/ssh/key.pyx
index 417c91c4..760fc743 100644
--- a/ssh/key.pyx
+++ b/ssh/key.pyx
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from libc.string cimport const_char
 
diff --git a/ssh/keytypes.pxd b/ssh/keytypes.pxd
index 3552e444..8d4c8944 100644
--- a/ssh/keytypes.pxd
+++ b/ssh/keytypes.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from .c_ssh cimport ssh_keytypes_e
 
diff --git a/ssh/keytypes.pyx b/ssh/keytypes.pyx
index 4920aeaf..dfec92c0 100644
--- a/ssh/keytypes.pyx
+++ b/ssh/keytypes.pyx
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018-2020 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from libc.string cimport const_char
 
diff --git a/ssh/options.pxd b/ssh/options.pxd
index 4e34184c..6728cdf7 100644
--- a/ssh/options.pxd
+++ b/ssh/options.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from .c_ssh cimport ssh_options_e
 
diff --git a/ssh/options.pyx b/ssh/options.pyx
index 33b29f0b..415cd407 100644
--- a/ssh/options.pyx
+++ b/ssh/options.pyx
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from .c_ssh cimport ssh_options_e
 
diff --git a/ssh/scp.pxd b/ssh/scp.pxd
index eac06e1d..cf1d3c9b 100644
--- a/ssh/scp.pxd
+++ b/ssh/scp.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from .session cimport Session
 
diff --git a/ssh/scp.pyx b/ssh/scp.pyx
index b23b6b92..181c9992 100644
--- a/ssh/scp.pyx
+++ b/ssh/scp.pyx
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from libc.stdlib cimport malloc, free
 from libc.string cimport const_char
diff --git a/ssh/session.pxd b/ssh/session.pxd
index 98da41eb..453e58b9 100644
--- a/ssh/session.pxd
+++ b/ssh/session.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from . cimport c_ssh
 
diff --git a/ssh/session.pyx b/ssh/session.pyx
index 80402512..b7ff529a 100644
--- a/ssh/session.pyx
+++ b/ssh/session.pyx
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from cpython cimport PyObject_AsFileDescriptor
 from libc.stdlib cimport malloc, free
diff --git a/ssh/sftp.pxd b/ssh/sftp.pxd
index 7cafd6f2..115554c0 100644
--- a/ssh/sftp.pxd
+++ b/ssh/sftp.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from .session cimport Session
 
diff --git a/ssh/sftp.pyx b/ssh/sftp.pyx
index 5b4efc28..cd2f682a 100644
--- a/ssh/sftp.pyx
+++ b/ssh/sftp.pyx
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from libc.stdlib cimport malloc, free
 
diff --git a/ssh/sftp_attributes.pxd b/ssh/sftp_attributes.pxd
index 6eccaa6b..a199be9e 100644
--- a/ssh/sftp_attributes.pxd
+++ b/ssh/sftp_attributes.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from .sftp cimport SFTP
 
diff --git a/ssh/sftp_attributes.pyx b/ssh/sftp_attributes.pyx
index 1facfffb..c5824220 100644
--- a/ssh/sftp_attributes.pyx
+++ b/ssh/sftp_attributes.pyx
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from libc.stdlib cimport malloc, free
 
diff --git a/ssh/sftp_handles.pxd b/ssh/sftp_handles.pxd
index fac903eb..b902e119 100644
--- a/ssh/sftp_handles.pxd
+++ b/ssh/sftp_handles.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from .sftp cimport SFTP
 from .sftp_attributes cimport SFTPAttributes
diff --git a/ssh/sftp_handles.pyx b/ssh/sftp_handles.pyx
index 059aa1b5..780bd417 100644
--- a/ssh/sftp_handles.pyx
+++ b/ssh/sftp_handles.pyx
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from libc.stdlib cimport malloc, free
 
diff --git a/ssh/sftp_statvfs.pxd b/ssh/sftp_statvfs.pxd
index ee49093b..39062041 100644
--- a/ssh/sftp_statvfs.pxd
+++ b/ssh/sftp_statvfs.pxd
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from .sftp cimport SFTP
 
diff --git a/ssh/sftp_statvfs.pyx b/ssh/sftp_statvfs.pyx
index 4526dd4f..44a344be 100644
--- a/ssh/sftp_statvfs.pyx
+++ b/ssh/sftp_statvfs.pyx
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from .sftp cimport SFTP
 
diff --git a/ssh/utils.pxd b/ssh/utils.pxd
index 16cdad7c..1c5e8ff5 100644
--- a/ssh/utils.pxd
+++ b/ssh/utils.pxd
@@ -1,19 +1,19 @@
-# This file is part of ssh-python.
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# Copyright (C) 2017-2020 Panos Kittenis
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from .c_ssh cimport ssh_session, ssh_string
 
diff --git a/ssh/utils.pyx b/ssh/utils.pyx
index c2d33a2d..8f13794e 100644
--- a/ssh/utils.pyx
+++ b/ssh/utils.pyx
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from select import select
 
diff --git a/tests/__init__.py b/tests/__init__.py
index e69de29b..c1b9dac2 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -0,0 +1,16 @@
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
diff --git a/tests/base_case.py b/tests/base_case.py
index efd2bfaf..d568f19a 100644
--- a/tests/base_case.py
+++ b/tests/base_case.py
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018-2020 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 import os
 import unittest
diff --git a/tests/test_channel.py b/tests/test_channel.py
index 44bb39e7..356c724d 100644
--- a/tests/test_channel.py
+++ b/tests/test_channel.py
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from ssh.channel import Channel
 from ssh.session import Session
diff --git a/tests/test_connector.py b/tests/test_connector.py
index 1821a6f9..2ba3232a 100644
--- a/tests/test_connector.py
+++ b/tests/test_connector.py
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 import socket
 
diff --git a/tests/test_event.py b/tests/test_event.py
index 26e4cf01..41419412 100644
--- a/tests/test_event.py
+++ b/tests/test_event.py
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 import socket
 
diff --git a/tests/test_keys.py b/tests/test_keys.py
index 8feab93a..3bb0dcdf 100644
--- a/tests/test_keys.py
+++ b/tests/test_keys.py
@@ -1,3 +1,20 @@
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 import os
 
 from ssh.key import (SSHKey, SSH_FILE_FORMAT_OPENSSH, SSH_FILE_FORMAT_PEM, import_pubkey_file,
diff --git a/tests/test_keytypes.py b/tests/test_keytypes.py
index 4bee8ea0..63a80eef 100644
--- a/tests/test_keytypes.py
+++ b/tests/test_keytypes.py
@@ -1,3 +1,20 @@
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
+#
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
+#
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
+#
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+
 import unittest
 
 from ssh.key import generate
diff --git a/tests/test_session.py b/tests/test_session.py
index ad78a7bc..807cc40e 100644
--- a/tests/test_session.py
+++ b/tests/test_session.py
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 import unittest
 import socket
diff --git a/tests/test_sftp.py b/tests/test_sftp.py
index 7cba61b8..44e485fe 100644
--- a/tests/test_sftp.py
+++ b/tests/test_sftp.py
@@ -1,18 +1,19 @@
-# This file is part of ssh-python.
-# Copyright (C) 2018 Panos Kittenis
+#  This file is part of ssh-python.
+#  Copyright (C) 2018-2025 Panos Kittenis.
+#  Copyright (C) 2018-2025 ssh-python Contributors.
 #
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation, version 2.1.
+#  This library is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU Lesser General Public
+#  License as published by the Free Software Foundation, version 2.1.
 #
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
+#  This library is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#  Lesser General Public License for more details.
 #
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
+#  You should have received a copy of the GNU Lesser General Public
+#  License along with this library; if not, write to the Free Software
+#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-130
 
 from ssh.sftp import SFTP