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MFS(R) NEW DISCOVERY FUND
Supplement to the Current Prospectus and Statement of Additional Information
Effective April 14, 2000, the fund will no longer be available for sale
to new shareholders, except for participants making contributions through
retirement plans qualified under section 401(a) or 403(b) of the Internal
Revenue Code of 1986, as amended. Shares of the fund will continue to be
available for sale to current shareholders of the fund. Consequently, purchase
orders for fund shares by new shareholders received after April 14, 2000 will
be rejected by the fund.
The date of this supplement is April 20, 2000.