In this chapter, we have reviewed the major new features offered by the Lotus Notes 8 and 8.5 client. Many of these involve enhancements to the client user interface itself. Other new features include enhancements to mail, calendar, and contacts. These features significantly broaden the power and usefulness of the Notes client, while providing greater ease of use (and potentially minimal retraining) - an important consideration for any user planning to upgrade to Notes 8 or 8.5