Maven3 and M2eclipse mismatch when handling parent version?

Does anyone know if M2Eclipse backed by maven3 supports parent definition without versions?

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The maven3 specs says that it should be allowed, as per this maven 3 beta overview. However, M2Eclipse stills spits out a "'parent.version' is missing" error when the version tag is removed.

NB: I will qualify that I have a working build using other means. I'm posting this question because it would be nice to know if anyone has a versionless parent working with M2Eclipse; it's a much neater solution.

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Use m2e and not old m2eclipse.