I've got my test runners updated to msvc-14.0 RTM (they were previously on the RC).

master - teeks99-06f

master - teeks99-08l

develop - teeks99-08f

It appears that the config module has changes for msvc-14 that need to be merged to master. Any time you compile a .cpp file with #include <boost/config> you get a line in your output (not a warning, just very annoying text) saying:
"Unknown compiler version - please run the configure tests and report the results"

This is currently happening on master: http://www.boost.org/development/tests/master/developer/output/teeks99-08l-win2012R2-64on64-boost-bin-v2-libs-assign-test-list_inserter-test-msvc-14-0-dbg-adrs-mdl-64-thrd-mlt.html

but not on develop: http://www.boost.org/development/tests/develop/developer/output/teeks99-08f-win2012R2-64on64-boost-bin-v2-libs-assign-test-list_inserter-test-msvc-14-0-dbg-adrs-mdl-64-thrd-mlt.html