Version 4.8.1 is available upstream. Please consider updating!
It seems that version 4.8.1 is available upstream, while the latest version in the Gentoo tree is 4.7.0-r3.
You think this warning is false? Read more about it here.

Available Versions

Versionamd64x86alphaarmarm64hppamipsppcppc64riscvsparc
4.7.0-r3  : 0 EAPI 8 amd64 x86?alpha ~arm ~arm64?hppa?mips?ppc?ppc64?riscv?sparc
4.6.2  : 0 EAPI 8 amd64 x86?alpha ~arm ~arm64?hppa?mips?ppc?ppc64?riscv?sparc

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