Version 188.8.131.52 is available upstream. Please consider updating!
It seems that version 184.108.40.206 is available upstream, while the latest version in the Gentoo tree is 220.127.116.11. You think this warning is false? Read more about it here.
This package defines a class, 'Hashable', for types that
can be converted to a hash value. This class
exists for the benefit of hashing-based data
structures. The package provides instances for
basic types and a way to combine hash values.