This patch will upgrade any version of WBM to version 1.9.5.
This is also a data patch but you will have to start a new game in order to see the rosters updates and the new tournaments.
Your previous saves will work with new version. So you can continue your previous game after installing.
If you start a new game thought, you will have to reapply other unofficial patches like the real names patch that most users download from the forum.