Is TuneUp Utilities 2011 compatible with older versions?

TuneUp Utilities 2011 cannot be installed in parallel with TuneUp Utilities. The previous version is removed when you install the latest version.

TuneUp Utilities 2009 and earlier versions can be operated in parallel with the current version. However, for performance reasons we recommend removing older versions before installing the current version of TuneUp Utilities.