Conn. Gen. Stat. § 33-806: Amendment by shareholders or board of directors.

(a) A corporation's shareholders may amend or repeal the corporation's bylaws.

(b) A corporation's board of directors may amend or repeal the corporation's bylaws unless: (1) The certificate of incorporation, section 33-808 or, if applicable, section 33-809 reserves that power exclusively to the shareholders in whole or part; or (2) except as provided in subsection (d) of section 33-640, the shareholders in amending, repealing or adopting a bylaw expressly provide that the board of directors may not amend, repeal or reinstate that bylaw.