Forget enterprise time, it's about to be two major versions old in major version time, once v5 is official. Not sure what happened to v3 and v4, I think Elastic

Forget enterprise time, it's about to be two major versions old in major version time, once v5 is official. Not sure what happened to v3 and v4, I think Elastic skipped them to get all of their products aligned to the same version. Elastic says they don't backport fixes either, so in this case, it might be a good idea to stay near the leading edge of the release cycle.