The release candidates for the 1.68.0 release are now available at: https://dl.bintray.com/boostorg/release/1.68.0/source/ The SHA256 checksums are as follows: 59804d8fad02cf3b09485f3dbc0f9097c05fc1e0123f0c133b35a6c6f601109a boost_1_68_0_rc1.7z 7f6130bc3cf65f56a618888ce9d5ea704fa10b462be126ad053e80e553d6d8b7 boost_1_68_0_rc1.tar.bz2 da3411ea45622579d419bfda66f45cd0f8c32a181d84adfa936f5688388995cf boost_1_68_0_rc1.tar.gz 3b1db0b67079266c40b98329d85916e910bbadfc3db3e860c049056788d4d5cd boost_1_68_0_rc1.zip 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. The web site will be updated today as well.