[The following footnote was effective before December 31, 2016. See  PCAOB Release No. 2015-002. The current standard can be found here.] 

fn 24  Undertaking an engagement to examine MD&A does not extend the auditor's responsibility to update the subsequent events review procedures for the financial statements beyond the date of the auditor's report. However, see AU section 561, Subsequent Discovery of Facts Existing at the Date of the Auditor's Report. Also, see AU section 711, Filings Under Federal Securities Statutes, as to an auditor's responsibility when his or her report is included in a registration statement filed under the 1933 Act.