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Boost 1.54.0 Uplift
Boost has been upgraded to version 1.54.0. Apart from a number of bugfixes, this brings in three new libraries: Boost.Log for logging, Boost.TTI for Type Traits Introspection, and Boost.TypeErasure for runtime polymorphism based on concepts.
The upstream release notes at http://www.boost.org/users/history/version_1_54_0.html provide detailed information on the release.