I post this as it was a point of confusion for me...

The new regression matrices are here:
http://www.boost.org/development/tests/develop/developer/summary.html
http://www.boost.org/development/tests/master/developer/summary.html

The sidebar on the website's page(s) (http://www.boost.org/development/) needs to be updated with these, since they still point to the out-of-date pages.

  (But now I see that http://www.boost.org/development/testing.html does have these references.)

Also, http://www.boost.org/development/running_regression_tests.html seems to be partially updated. While the first example (above the Options box) uses --tag=develop, the text below the Options box still makes reference to "trunk" and "branches/release". I'm pretty sure if those tags are still used, the tests results will be misplaced.

Lower priority: There are a few more references to SVN on the running_regression_tests.html page that need to be fixed, and perhaps options that have been removed (--force-update, --user).