This Release fixes a bug in Version 3.7.2 where the trading mode was not always set correctly.
Also the STOP command now works correctly. The failure to work before was due to an incorrect build.
If you have already installed IBC 3.7.0, 3.7.1 or 3.7.2, you just need to extract the IBC.jar file from the zip to your IBC folder, replacing the existing file. You should also do the same with the version file, to ensure that IBC log files contain the correct information.