At a meeting on March 14, 2023, Eaton Vance Municipal Bond Fund's Board of Trustees (the “Board”) appointed Anchal Pachnanda as a Trustee. Ms. Pachnanda commenced her service on the Board on April 1, 2023 holding experience as Co-Head of Strategy of MSIM (since 2019). Formerly, Head of Strategy of MSIM (2017-2019).

Ms. Pachnanda is an interested person because of her position with MSIM, which is an affiliate of the Fund. Thomas E. Faust Jr. has apprised the Board that he intends to retire as a Trustee of all Eaton Vance Funds effective on or about August 3, 2023.