Just an FYI, for my own build, I reverted my changes back to Boost 1.55 and applied the patch for serialization to build in msvc-12.0. That got me past my build problems. Hopefully, that is all I need.
As for the latest build, bcp, etc., I'll keep testing the develop branch and post back here, when things are working again. Do I/we need to file any issues to track this? This thread is all I have so far.
Thanks for all of the work. Hope we can resolve this soon.