The release candidates for the first 1.70.0 beta release are now available at:

The release notes are not yet available.

The SHA256 checksums are as follows:

a7c570d6307d05dc8d45a3b4c69a0afdcba2b22eac0c4da4d496559f53db7b89  ./boost_1_70_0_b1_rc1.7z
4b91b9a203cf12f6001cf39de83c7cc005fbc5390e2b4b2fc29ce7b19c0537a7  ./boost_1_70_0_b1_rc1.tar.bz2
460dd6499bba9df04c6bfa219b26097bad803b8758304ba45f2fc291aa42c96e  ./boost_1_70_0_b1_rc1.tar.gz
f209c9a086ed2c7882a0bc8755792f436eb141eaeb8c823ed57295ca9ce25b93  ./

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