Boost release 1.64.0 beta 2 is now available at: <https://dl.bintray.com/boostorg/beta/1.64.0.beta.2/source/> The SHA256 checksums are as follows: 49c9339b9d8e7b2610ef84c80cd10b2252c119ebcc3222450beb0e94c1da1522 boost_1_64_0_b2.7z 92ec7cbf1e77c5979e381dd8104f9e96c0471c276e566272751a981d806db94b boost_1_64_0_b2.tar.bz2 da5670892b7b572808491b13a7b9421c3c18e6f395d6a5ec822466db466eda01 boost_1_64_0_b2.tar.gz 61d6e29e8a1d7503fe13a9d916842f0ec2e625f733b98b29ce563f8cbdb482bf boost_1_64_0_b2.zip The notable difference from Beta 1 is the inclusion of the missing Boost Process library. For details of what's in the release, see < http://www.boost.org/users/history/version_1_64_0.html>. Note that the links to files on this web page are for the final release - use the link above to get the beta files. There are also pre-built libraries provided by Tom Kent here: <https://dl.bintray.com/boostorg/beta/1.64.0.beta.2/binaries/> Please download the beta, give it a try, and report any problems you encounter. Thanks, -- The Boost Release Team -- -- Rene Rivera -- Grafik - Don't Assume Anything -- Robot Dreams - http://robot-dreams.net -- rrivera/acm.org (msn) - grafikrobot/aim,yahoo,skype,efnet,gmail