Some PIM repositories contain ancient code which ideally shall be relicensed.
The current situation is already problematic, mixing incompatible licenses is normally not allowed
- `GPL-2.0-only` files shall be relicensed to `GPL-2.0-or-later` or `GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL` (ie: give authority to the KDE e.V. if the GPL-3.0 license has a successor in the future)
- `LGPL-2.0-only` files shall be relicensed to `LGPL-2.0-or-later` or `LGPL-2.0-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL` (ie: give authority to the KDE e.V. if the LGPL-3.0 license has a successor in the future)
`LGPL-2.1-only` files shall be relicensed to `LGPL-2.1-or-later`
This is a challenging tasks, some PIM files are more than 20 years old and not all contributors added their name to the relicensecheck.pl script.