You've currently chosen the 1.91.0 version. If a newer release comes out, you will continue to view the 1.91.0 version, not the new latest release.
C++ 03
Added in Boost
1.19.0
Static assertions (compile time assertions). Merged into Boost.Config.
This Release
Dependencies
Boost StaticAssert Library
The Boost StaticAssert library provides static assertions for C++, this library is the ancestor to C++ native static_assert's and can be used on older compilers which don't have that feature.
This library has been merged into Boost.Config. The full documentation is available on boost.org.