[boost] [release] Boost 1.77.0 beta 1 released

Boost release 1.77.0 beta 1 is now available at: https://boostorg.jfrog.io/artifactory/main/beta/1.77.0.beta1/source/ The SHA256 checksums are as follows: 1aba2bf9416d71026c9e6bbd10a2b7cfb31b0950baa7ad0861dfb74984d96bd9 boost_1_77_0_b1.zip 55126d149664541ffc9fd1f41b2ec67146d69bdab92e41da4bb8610b755ca9ec boost_1_77_0_b1.7z 1aabe7704e91f4f8d97b81d03ddc21c3396f4b72fc4041f01bfcfc128bac0d73 boost_1_77_0_b1.tar.gz 3d5801790c96d2bc9ed23372c4f9fd963bc2f39fe540e35d7b4fe586ba77dfa7 boost_1_77_0_b1.tar.bz2 For details of what's in the release, see https://www.boost.org/users/history/version_1_77_0.html. Please download the beta, give it a try, and report any problems you encounter. Thanks, -- The Boost Release Team