If, in the course of an offer, the offeror revises its terms, all offeree company shareholders, whether or not they have already accepted the offer, will be entitled to the revised terms. A revised offer must be kept open for at least 15 calendar days following the date on which the revised offer document is posted. Therefore, no revised offer document may be posted in the 15 calendar days ending on the last day the offer is able to become unconditional as to acceptances.