On Thu, Apr 9, 2020 at 1:20 AM Marshall Clow via Boost-users <boost-users@lists.boost.org> wrote:
The release candidates for the first 1.73.0 beta release are now available at:
    https://dl.bintray.com/boostorg/beta/1.73.0.beta.1/source/

The release notes are not yet available.

The SHA256 checksums are as follows:
44f323b42c4375ab3751b67ac5ce53ba5267af20cf375be75675d8952d3cca4e  ./boost_1_73_0_b1_rc1.7z
5270fa89243a3508331bd3773800de6d2f98d1f160b95e362fa8269d9cd58773  ./boost_1_73_0_b1_rc1.tar.bz2
82ffcd4a2e558a31f1ddd6a54ef6c00dae28b95c2ddee575c285544085dcb004  ./boost_1_73_0_b1_rc1.tar.gz
910b7560ee239472cc69e6a0c680dc4d9d7ea234faad807738ec98e4811c63d4  ./boost_1_73_0_b1_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 Boost Release Managers

Generally looks good on Windows/Visual Studio.  However, it took me three tries to get here. My first two builds stalled out during the build. I didn't pay attention to where the first one stopped, but the second was in the build for wave, no failure just the build stopped on a compile step. I believe this only happened with msvc-14.2 - 32 bit.

After a couple restarts I was able to build without issues:

toolset     arch    compile Link    Execute
msvc-10.0   32      X       X       X
msvc-10.0   64      X       X       X
msvc-11.0   32      X       X       X
msvc-11.0   64      X       X       X
msvc-12.0   32      X       X       X
msvc-12.0   64      X       X       X
msvc-14.0   32      X       X       X
msvc-14.0   64      X       X       X
msvc-14.1   32      X       X       X
msvc-14.1   64      X       X       X
msvc-14.2   32      X       X       X
msvc-14.2   64      X       X       X

Compile means that the b2 command completed without errors
Link means that visual studio was able to link a sample executable to a library (libboost_thread-vcXXX-mt[-gd]-1_XX.lib) generated
Execute means that the linked program executed without errors.

Full logs are available here:
https://gist.github.com/teeks99/f4066721729a12403a8bf6f0499d7633

Tom