contrib has not been imported to sme10, still only sme9, I would think later rather than sooner,
unless you participate to get it ported...probably not that much work to do, but at least the php changes and add an update event on installation
as you are an experienced user , that is at least an important part of releasing it.was the alpha version in SME9 working good for you ?because it was never released to contribs https://wiki.koozali.org/Egroupwaremoved to contribs forum