Effective as of June 19, 2018, pursuant to the 2018 Amended and Restated Partnership Agreement, there was created classes of Units designated as “Series A Exchangeable Preferred Units” and “Series B Exchangeable Preferred Units,” and effective as of September 26, 2018 there is hereby created classes of Units designated as “Series C Exchangeable Preferred Units” and “Series D Exchangeable Preferred Units,” in each case with the designations, preferences and relative, participating, optional or other special rights, powers and duties as set forth in this Section  4.09 and elsewhere in this Agreement.