Excepting resolutions determining or altering the form of notes or bonds or providing for their sale, execution and delivery, and resolutions amendatory thereof or supplemental thereto, such resolutions adopted by the board of education shall be published in a newspaper circulating in the school district and shall take effect immediately upon such publication. Resolutions not required to be published shall take effect immediately upon adoption by the board of education. Thirty days after taking effect all resolutions shall be conclusively presumed to have been duly and regularly adopted by the board of education, and to comply with the provisions of this and of every law; and the validity of any such resolution shall not thereafter be questioned by either a party plaintiff or a party defendant, except in a suit, action or proceeding, commenced prior to the expiration of such thirty days; and unless a suit, action or proceeding questioning the validity of notes or bonds purporting to be issued by virtue of any such resolution be commenced prior to the expiration of such thirty-day period, any such notes or bonds reciting that they are issued pursuant to this article shall, after their issuance and delivery, if no suit relating thereto is then pending, be conclusively presumed to be fully authorized by all the laws of this state and to have been issued, sold, executed and delivered by the school district in conformity therewith and shall not be questioned by the school district or any taxpayer or legal voter thereof in any court, anything herein or in any other statutes to the contrary notwithstanding.