Wyo. Stat. Ann. § 17-19-1008

An amendment to articles of incorporation does not affect a cause of action existing against or in favor of the corporation, a proceeding to which the corporation is a party, any requirement or limitation imposed upon the corporation or any property held by it by virtue of any trust upon which the property is held by the corporation or the existing rights of persons other than members of the corporation. An amendment changing a corporation's name does not abate a proceeding brought by or against the corporation in its former name. B. Bylaws 17-19-1020. Amendment by directors. If a corporation has no members, its incorporators, until directors have been chosen, and thereafter its board of directors, may adopt one (1) or more amendments to the corporation's bylaws subject to any approval required pursuant to W.S. 17-19-1030. The corporation shall provide notice of any meeting of directors at which an amendment is to be approved. The notice shall be in accordance with W.S. 17-19-822(c). The notice shall also state that the purpose, or one (1) of the purposes, of the meeting is to consider a proposed amendment to the bylaws and contain or be accompanied by a copy or summary of the amendment or state the general nature of the amendment. The amendment shall be approved by a majority of the directors in office at the time the amendment is adopted.