On Mar 5, 2026, at 6:39 PM, Marshall Clow <mclow.lists@gmail.com> wrote:
Available at: <https://archives.boost.io/beta/1.91.0.beta1/source/>
The SHA256 checksums are as follows:
b8e78a226d2c0bd6ad4346254988dc2af15c0ae569d974e4da09e7dd0f338980 boost_1_91_0_b1_rc1.zip 866a39f4b6b1591c04bbb7d9c70ed241a794162512df0fa2ef79374b774354a3 boost_1_91_0_b1_rc1.7z d1eb15102b3379bff874894dd0c39d25a85c9c41147a2dd25215602b911125db boost_1_91_0_b1_rc1.tar.bz2 1194fb011943b4425cc6e15f3ee7272ae9c8331938c7d1bac8767850463c2e84 boost_1_91_0_b1_rc1.tar.gz
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.
I have successfully built the boost libraries on an M4Pro Mac Mini with Apple clang version 17.0.0 (clang-1700.6.4.2) I got a lot of warnings that: ld: warning: -single_module is obsolete — Marshall