This patch is for anyone experience a "hang" at the start of free agency. In other words, just after completing the contract renewals for your team, the game becomes unresponsive.
If you aren't having this problem, you can stick with Version 15.07.
To install this patch:
1) First, backup your current 'BB2K13.exe' file as follows:
1a) Inside Baseball Mogul 2013, choose 'Open Game Folder' from the Help Menu.
1b) Rename the file named 'BB2K13' (to something like 'BB2K13-backup')
2) Download the attached file.
3) Double-click on the file to unzip it.
4) When it asks where to put the file (BB2K13.exe), choose C:\Sports Mogul\Baseball Mogul 2013\
5) Run Baseball Mogul 2013 normally from the same icon you were using before.
Let me know if this doesn't fix the problem.