Version 1.4.0 is available upstream. Please consider updating! It seems that version 1.4.0 is available upstream, while the latest version in the Gentoo tree is 1.3.6-r2. You think this warning is false? Read more about it here.
This package aims to replace the package,
as it contains various improvments for RTL-SDR Blog V3 and V4 units.
Since it's based on a modified package,
it cannot co-exist with it.