It will decompress and then process for some seconds, and if your game client is not up to date, it will suggest that you are to update to version 795745. If you select "yes", then the patch process will commence and in 5-15 minutes your game client should now be updated to Client R11.
The RSPs will begin updating game servers on Wed Sep 21st, so if you install this patch earlier than that date, you will not be able to see any servers. In that case all you need to do is wait for Wednesday to come by.
#49679