Eaton Vance Short Duration Diversified Income Fund announced that at a meeting on March 14, 2023, the registrant's Board of Trustees (the “Board”) appointed Anchal Pachnanda as a Trustee. Ms. Pachnanda commenced her service on the Board on April 1, 2023. 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.

ANCHAL PACHNANDA was 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.