[boost] [release] Boost 1.89.0 Release Candidate 1 is available

The first release candidates for the 1.89.0 release are now available at: <https://archives.boost.io/release/1.89.0/source/> The SHA256 checksums are as follows: d8b0c1d593d68fe359616aa2fae4b3e258ca1f90ed57eb46c5494c29cdd1d49d boost_1_89_0_rc1.7z 9de758db755e8330a01d995b0a24d09798048400ac25c03fc5ea9be364b13c93 boost_1_89_0_rc1.tar.gz 85a33fa22621b4f314f8e85e1a5e2a9363d22e4f4992925d4bb3bc631b5a0c7a boost_1_89_0_rc1.tar.bz2 77bee48e32cabab96a3fd2589ec3ab9a17798d330220fdd8bde6ff5611b4ccde boost_1_89_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 Release managers