The next version of boost is released.

Boost 1.59

From the release note:

These new libraries has been added:

• Convert: An extendible and configurable type-conversion framework, from Vladimir Batov.
• Coroutine2: (C++14) Coroutine library, from Oliver Kowalke.

A huge number of bugfixes and improvements were implemented for the existing libraries.

Many thanks to all contributors and maintainer!