This is a bugfix release for the current MySQL Community Server production release family. It replaces MySQL 5.0.51.
On Windows, the installer attempted to use JScript to determine whether the target data directory already existed. On Windows Vista x64, this resulted in an error because the installer was attempting to run the JScript in a 32-bit engine, which wasn't registered on Vista. The installer no longer uses JScript but instead relies on a native WiX command. (Bug #36103)
The MySQL preferences pane did not work to start or stop MySQL on Mac OS X 10.5 (Leopard). (Bug #28854)
On Mac OS X, the StartupItem for MySQL did not work. (Bug #25008)