Release candidate files for 1.51.0 beta 1 are available at http://boost.cowic.de/rc/ As always, the release managers would appreciate it if you download the candidate of your choice and give building it a try. Please report both success and failure, and anything else that is noteworthy. This helps ensure the candidates build OK before we push them out to SourceForge. The files (and associated md5s) are: e3a51b82894a67ac438eaa08192929eb *boost_1_51_0_beta1_rc2.tar.gz 1c541236f98dcaa706e7f8eabb11ebfc *boost_1_51_0_beta1_rc2.tar.bz2 964f150ce9d7bcaba74255aba73d338a *boost_1_51_0_beta1_rc2.zip e23467c3369a53189300c76e8c848aa1 *boost_1_51_0_beta1_rc2.7z Thanks to everyone who tried out rc1, and especially Neal Becker, who helped me track down a permissions error in the build process --The release managers