diff --git a/freecad/gears/__init__.py b/freecad/gears/__init__.py
index 5fd34f8..d59c720 100644
--- a/freecad/gears/__init__.py
+++ b/freecad/gears/__init__.py
@@ -1,21 +1,18 @@
# -*- coding: utf-8 -*-
# ***************************************************************************
# * *
-# * This program is free software; you can redistribute it and/or modify *
-# * it under the terms of the GNU Lesser General Public License (LGPL) *
-# * as published by the Free Software Foundation; either version 2 of *
-# * the License, or (at your option) any later version. *
-# * for detail see the LICENCE text file. *
+# * This program is free software: you can redistribute it and/or modify *
+# * it under the terms of the GNU General Public License as published by *
+# * the Free Software Foundation, either version 3 of the License, or *
+# * (at your option) any later version. *
# * *
-# * This program 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 Library General Public License for more details. *
+# * This program 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 General Public License for more details. *
# * *
-# * You should have received a copy of the GNU Library General Public *
-# * License along with this program; if not, write to the Free Software *
-# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
-# * USA *
+# * You should have received a copy of the GNU General Public License *
+# * along with this program. If not, see . *
# * *
# ***************************************************************************
diff --git a/freecad/gears/commands.py b/freecad/gears/commands.py
index a191549..b26dc90 100644
--- a/freecad/gears/commands.py
+++ b/freecad/gears/commands.py
@@ -1,21 +1,18 @@
# -*- coding: utf-8 -*-
# ***************************************************************************
# * *
-# * This program is free software; you can redistribute it and/or modify *
-# * it under the terms of the GNU Lesser General Public License (LGPL) *
-# * as published by the Free Software Foundation; either version 2 of *
-# * the License, or (at your option) any later version. *
-# * for detail see the LICENCE text file. *
+# * This program is free software: you can redistribute it and/or modify *
+# * it under the terms of the GNU General Public License as published by *
+# * the Free Software Foundation, either version 3 of the License, or *
+# * (at your option) any later version. *
# * *
-# * This program 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 Library General Public License for more details. *
+# * This program 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 General Public License for more details. *
# * *
-# * You should have received a copy of the GNU Library General Public *
-# * License along with this program; if not, write to the Free Software *
-# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
-# * USA *
+# * You should have received a copy of the GNU General Public License *
+# * along with this program. If not, see . *
# * *
# ***************************************************************************
diff --git a/freecad/gears/features.py b/freecad/gears/features.py
index f3ef16c..3953613 100644
--- a/freecad/gears/features.py
+++ b/freecad/gears/features.py
@@ -1,21 +1,18 @@
# -*- coding: utf-8 -*-
# ***************************************************************************
# * *
-# * This program is free software; you can redistribute it and/or modify *
-# * it under the terms of the GNU Lesser General Public License (LGPL) *
-# * as published by the Free Software Foundation; either version 2 of *
-# * the License, or (at your option) any later version. *
-# * for detail see the LICENCE text file. *
+# * This program is free software: you can redistribute it and/or modify *
+# * it under the terms of the GNU General Public License as published by *
+# * the Free Software Foundation, either version 3 of the License, or *
+# * (at your option) any later version. *
# * *
-# * This program 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 Library General Public License for more details. *
+# * This program 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 General Public License for more details. *
# * *
-# * You should have received a copy of the GNU Library General Public *
-# * License along with this program; if not, write to the Free Software *
-# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
-# * USA *
+# * You should have received a copy of the GNU General Public License *
+# * along with this program. If not, see . *
# * *
# ***************************************************************************
diff --git a/freecad/gears/init_gui.py b/freecad/gears/init_gui.py
index c95ee38..224497b 100644
--- a/freecad/gears/init_gui.py
+++ b/freecad/gears/init_gui.py
@@ -1,21 +1,18 @@
# -*- coding: utf-8 -*-
# ***************************************************************************
# * *
-# * This program is free software; you can redistribute it and/or modify *
-# * it under the terms of the GNU Lesser General Public License (LGPL) *
-# * as published by the Free Software Foundation; either version 2 of *
-# * the License, or (at your option) any later version. *
-# * for detail see the LICENCE text file. *
+# * This program is free software: you can redistribute it and/or modify *
+# * it under the terms of the GNU General Public License as published by *
+# * the Free Software Foundation, either version 3 of the License, or *
+# * (at your option) any later version. *
# * *
-# * This program 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 Library General Public License for more details. *
+# * This program 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 General Public License for more details. *
# * *
-# * You should have received a copy of the GNU Library General Public *
-# * License along with this program; if not, write to the Free Software *
-# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
-# * USA *
+# * You should have received a copy of the GNU General Public License *
+# * along with this program. If not, see . *
# * *
# ***************************************************************************
diff --git a/pygears/__init__.py b/pygears/__init__.py
index fe1025b..73fab10 100644
--- a/pygears/__init__.py
+++ b/pygears/__init__.py
@@ -1,21 +1,18 @@
# -*- coding: utf-8 -*-
# ***************************************************************************
# * *
-# * This program is free software; you can redistribute it and/or modify *
-# * it under the terms of the GNU Lesser General Public License (LGPL) *
-# * as published by the Free Software Foundation; either version 2 of *
-# * the License, or (at your option) any later version. *
-# * for detail see the LICENCE text file. *
+# * This program is free software: you can redistribute it and/or modify *
+# * it under the terms of the GNU General Public License as published by *
+# * the Free Software Foundation, either version 3 of the License, or *
+# * (at your option) any later version. *
# * *
-# * This program 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 Library General Public License for more details. *
+# * This program 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 General Public License for more details. *
# * *
-# * You should have received a copy of the GNU Library General Public *
-# * License along with this program; if not, write to the Free Software *
-# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
-# * USA *
+# * You should have received a copy of the GNU General Public License *
+# * along with this program. If not, see . *
# * *
# ***************************************************************************
diff --git a/pygears/_functions.py b/pygears/_functions.py
index 1d04a7b..3369a53 100644
--- a/pygears/_functions.py
+++ b/pygears/_functions.py
@@ -1,21 +1,18 @@
# -*- coding: utf-8 -*-
# ***************************************************************************
# * *
-# * This program is free software; you can redistribute it and/or modify *
-# * it under the terms of the GNU Lesser General Public License (LGPL) *
-# * as published by the Free Software Foundation; either version 2 of *
-# * the License, or (at your option) any later version. *
-# * for detail see the LICENCE text file. *
+# * This program is free software: you can redistribute it and/or modify *
+# * it under the terms of the GNU General Public License as published by *
+# * the Free Software Foundation, either version 3 of the License, or *
+# * (at your option) any later version. *
# * *
-# * This program 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 Library General Public License for more details. *
+# * This program 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 General Public License for more details. *
# * *
-# * You should have received a copy of the GNU Library General Public *
-# * License along with this program; if not, write to the Free Software *
-# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
-# * USA *
+# * You should have received a copy of the GNU General Public License *
+# * along with this program. If not, see . *
# * *
# ***************************************************************************
diff --git a/pygears/bevel_tooth.py b/pygears/bevel_tooth.py
index f6b8586..a425252 100644
--- a/pygears/bevel_tooth.py
+++ b/pygears/bevel_tooth.py
@@ -1,21 +1,18 @@
# -*- coding: utf-8 -*-
# ***************************************************************************
# * *
-# * This program is free software; you can redistribute it and/or modify *
-# * it under the terms of the GNU Lesser General Public License (LGPL) *
-# * as published by the Free Software Foundation; either version 2 of *
-# * the License, or (at your option) any later version. *
-# * for detail see the LICENCE text file. *
+# * This program is free software: you can redistribute it and/or modify *
+# * it under the terms of the GNU General Public License as published by *
+# * the Free Software Foundation, either version 3 of the License, or *
+# * (at your option) any later version. *
# * *
-# * This program 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 Library General Public License for more details. *
+# * This program 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 General Public License for more details. *
# * *
-# * You should have received a copy of the GNU Library General Public *
-# * License along with this program; if not, write to the Free Software *
-# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
-# * USA *
+# * You should have received a copy of the GNU General Public License *
+# * along with this program. If not, see . *
# * *
# ***************************************************************************
diff --git a/pygears/computation.py b/pygears/computation.py
index d1abe92..02a7aab 100644
--- a/pygears/computation.py
+++ b/pygears/computation.py
@@ -1,21 +1,18 @@
# -*- coding: utf-8 -*-
# ***************************************************************************
# * *
-# * This program is free software; you can redistribute it and/or modify *
-# * it under the terms of the GNU Lesser General Public License (LGPL) *
-# * as published by the Free Software Foundation; either version 2 of *
-# * the License, or (at your option) any later version. *
-# * for detail see the LICENCE text file. *
+# * This program is free software: you can redistribute it and/or modify *
+# * it under the terms of the GNU General Public License as published by *
+# * the Free Software Foundation, either version 3 of the License, or *
+# * (at your option) any later version. *
# * *
-# * This program 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 Library General Public License for more details. *
+# * This program 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 General Public License for more details. *
# * *
-# * You should have received a copy of the GNU Library General Public *
-# * License along with this program; if not, write to the Free Software *
-# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
-# * USA *
+# * You should have received a copy of the GNU General Public License *
+# * along with this program. If not, see . *
# * *
# ***************************************************************************
diff --git a/pygears/cycloid_tooth.py b/pygears/cycloid_tooth.py
index 5234e9c..c0ef99e 100644
--- a/pygears/cycloid_tooth.py
+++ b/pygears/cycloid_tooth.py
@@ -1,21 +1,18 @@
# -*- coding: utf-8 -*-
# ***************************************************************************
# * *
-# * This program is free software; you can redistribute it and/or modify *
-# * it under the terms of the GNU Lesser General Public License (LGPL) *
-# * as published by the Free Software Foundation; either version 2 of *
-# * the License, or (at your option) any later version. *
-# * for detail see the LICENCE text file. *
+# * This program is free software: you can redistribute it and/or modify *
+# * it under the terms of the GNU General Public License as published by *
+# * the Free Software Foundation, either version 3 of the License, or *
+# * (at your option) any later version. *
# * *
-# * This program 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 Library General Public License for more details. *
+# * This program 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 General Public License for more details. *
# * *
-# * You should have received a copy of the GNU Library General Public *
-# * License along with this program; if not, write to the Free Software *
-# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
-# * USA *
+# * You should have received a copy of the GNU General Public License *
+# * along with this program. If not, see . *
# * *
# ***************************************************************************
diff --git a/pygears/involute_tooth.py b/pygears/involute_tooth.py
index 9485c73..767f231 100644
--- a/pygears/involute_tooth.py
+++ b/pygears/involute_tooth.py
@@ -1,21 +1,18 @@
# -*- coding: utf-8 -*-
# ***************************************************************************
# * *
-# * This program is free software; you can redistribute it and/or modify *
-# * it under the terms of the GNU Lesser General Public License (LGPL) *
-# * as published by the Free Software Foundation; either version 2 of *
-# * the License, or (at your option) any later version. *
-# * for detail see the LICENCE text file. *
+# * This program is free software: you can redistribute it and/or modify *
+# * it under the terms of the GNU General Public License as published by *
+# * the Free Software Foundation, either version 3 of the License, or *
+# * (at your option) any later version. *
# * *
-# * This program 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 Library General Public License for more details. *
+# * This program 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 General Public License for more details. *
# * *
-# * You should have received a copy of the GNU Library General Public *
-# * License along with this program; if not, write to the Free Software *
-# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
-# * USA *
+# * You should have received a copy of the GNU General Public License *
+# * along with this program. If not, see . *
# * *
# ***************************************************************************