Post #2803202

@Tubsta@soc.feditime.com yes, no change to what we actually support, just a change to how we (try to) communicate it. This is actually better compared to what we had before. Before we said "4.18" because that's the number RHEL8 declared, but in reality it has lots of features from kernels much newer than that. Meanwhile, _actual_ 4.18 was EOL years ago and uncompilable these days. It's harder to communicate than a version range, but its also not a meaningless statement like a straight version range was! More here: https://github.com/openzfs/zfs/pull/18295