[boost] iostreams library review

On Boost mailing archives I found a review request for Iostreams Library by Jonathan Turkanis. I did not see any follow-up and the library is not part of latest release so I suspect the review did not happen. Anyone knows what is the fate of this library? This communication is for informational purposes only. It is not intended as an offer or solicitation for the purchase or sale of any financial instrument or as an official confirmation of any transaction. All market prices, data and other information are not warranted as to completeness or accuracy and are subject to change without notice. Any comments or statements made herein do not necessarily reflect those of J.P. Morgan Chase & Co., its subsidiaries and affiliates.