Dear Glen, I would like to merge the following patches for Boost Histogram: https://github.com/boostorg/histogram/pull/356 This fixes a segfault that occured in rare cases. https://github.com/boostorg/histogram/pull/359 This removes deprecated parts of the API. The deprecation was first announced a few versions back according to our guidelines. https://github.com/boostorg/histogram/pull/360 https://github.com/boostorg/histogram/pull/357 Enables tests of the builtin ostream operator for histograms on Windows, this has no impact on users. The functionality was fine on Windows before, but I couldn't test it. I only now figured out how to pass environment variables to a test in a platform-independent way in b2 and cmake. https://github.com/boostorg/histogram/pull/358 This is a change to the CI scripts without impact on users. https://github.com/boostorg/histogram/commit/1a754bac7780302a25f3fa76f6f9c1b... Documentation update. Best regards, Hans