Absence of version 29.2 requires use.mask on USE=system-protoc >=dev-java/protobuf-java-4.29.1
commit c022c72762bb6b02bab66a63398a32f865d1a3ec Author: Paul Zander <negril.nx+gentoo@gmail.com> Date: Sun Dec 8 15:56:44 2024 +0100 dev-libs/protobuf: add 29.2 Signed-off-by: Paul Zander <negril.nx+gentoo@gmail.com> Signed-off-by: Sam James <sam@gentoo.org>