(a) A corporation may amend its articles of incorporation at any time to add or change a provision that is required or permitted in the articles of incorporation or to delete a provision not required in the articles of incorporation. Whether a provision is required or permitted in the articles of incorporation is determined as of the effective date of the amendment.
(b) A shareholder of the corporation does not have a vested property right resulting from any provision in the articles of incorporation, including provisions relating to management, control, capital structure, dividend entitlement, or purpose or duration of the corporation.