Version 9 is available upstream. Please consider updating!
It seems that version 9 is available upstream, while the latest version in the Gentoo tree is 2.1.54.
You think this warning is false? Read more about it here.

Available Versions

Versionamd64x86alphaarmarm64hppamipsppcppc64riscvsparc
2.1.54  : 0 EAPI 8 amd64 x86 ~alpha arm arm64 hppa ~mips ppc ppc64 ~riscv sparc

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