Not sure about what patch changes what, you can read the patch "readme"s for details.
It is always advised to start a new game with a new patch.
Wether it will work depends ofcourse on what patch you started the game with and what patch you are installing.
It is always advised to start a new game with a new patch.
Wether it will work depends ofcourse on what patch you started the game with and what patch you are installing.