Eaton Vance Municipal Bond Fund announced that at a meeting held on March 15, 2022, the company's Board of Trustees appointed Nancy A. Wiser as an independent Trustee. Wiser commenced her service on the Board on April 4, 2022. Formerly, She is an Executive Vice President and the Global Head of Operations at Wells Fargo Asset Management (2011-2021).

Effective on or about July 1, 2022, pursuant to a retirement policy adopted by the Board, Helen Frame Peters and William H. Park are expected to retire as Trustees.