Every amendment to this chapter, including any map incorporated therein, adopted in accordance with the Town Law, shall be entered in the minutes of the Town Board, and a copy or summaries thereof, exclusive of any map incorporated therein, shall be published once in a newspaper of general circulation in the Town. In addition, a copy of such law or amendment, together with a copy of any map incorporated therein, shall be posted conspicuously at or near the office of the Town Clerk in accordance with Town Law. Affidavits of the publication and posting thereof shall be filed with the Town Clerk.