This Agreement constitutes the entire agreement of the parties hereto and, except as provided herein, supersedes in their entirety all prior representations, understandings, undertakings or agreements (whether oral or written and whether expressed or implied) of the parties with respect to the subject matter hereof, including, without limitation, the Change of Control Severance Agreement entered into between the Company and Executive on [DATE], as amended to date, and the Addendum to Stock Option Agreement applicable to any stock option award of Executive. No waiver, alteration, or modification of any of the provisions of this Agreement will be binding unless in writing and signed by duly authorized representatives of the parties hereto and which specifically mention this Agreement.