This Assignment (including the recitals to this Assignment which are incorporated herein), and the Agreement set forth the entire understanding and agreement of the parties hereto, and shall supersede any other agreements and understandings (written or oral) between Assignor and Assignee on or prior to the date of this Assignment respecting the matters set forth herein. No amendment or modification to any terms of this Assignment, waiver of any covenant, obligation, breach or default under this Assignment or termination of this Assignment (other than as expressly provided in this Assignment), shall be valid unless in writing and executed and delivered by Assignor and Assignee.