You can read about the previous bugfixes and changes made for the beta version here:
- Fixed "3 * PI / 4 means West." in the Robot API, which should be "3 * PI / 2 means West.". Thanks goes to Gottl Johannes for pointing this out.
Download Robocode 188.8.131.52 (final) from here
Download Robocode .NET plug-in 184.108.40.206 from here
Download Robot testing plug-in 220.127.116.11 from here