Conn. Gen. Stat. § 9-42a
Change of name on registry list. Change in name of candidate not to affect name appearing on ballot.
(b) No such change in the name of a candidate at a primary shall affect the name of the candidate as it appears on the primary ballot. No such change in the name of a major party candidate at an election shall affect the name of such candidate as it appears on the election ballot. No such change in the name of a minor party candidate or a nominating petition candidate for any office at an election shall affect the name of such candidate as it appears on the election ballot.