Here is the short list of adjustments. These changes were done to accomodate requirements our upcoming certification for Windows Vista and Windows Server 2003. There aren't any "bug fixes" that would require you to install this newer build. This info is just to give you an overview of the changes. 1. The Boot time defragmentation engines are now located in the Diskeeper installation folder (Program FilesDiskeeper), instead of System Folder (as per Vista Logo requirements). A few other minor changes that don't affect the user were also implemented to ensure this new Vista requirement functions properly. 2. If Diskeeper is installed to remote computers across the network, (e.g. using Diskeeper Administrator/Active Directory/SMS) any user launching the user interface the first time will see a brief per-user configuration to implement that user's custom settings for the Diskeeper interface.