On Fri, Jul 19, 2019 at 8:59 PM Michael Caisse via Boost-users <boost-users@lists.boost.org> wrote:

Note: The previous email announcement still had the rc1 tag in the
filenames. This version of beta1 is identical in content to beta1 rc1.
...

For details of what's in the release, see
<http://www.boost.org/users/history/version_1_71_0.html>.

That link is still broken (for me at least), like the first time. FYI. --DD